10 Best Plant Cloning Machines for Indoor Growers (September 2026) Honest Reviews

If you’ve ever tried to root cuttings in soil and watched half of them wither into mush, you already know why I started hunting for the best plant cloning machines for indoor growers. A cloning machine takes the guesswork out of propagation by suspending your cuttings in a controlled environment where oxygen-rich water or a fine mist kisses the stem 24/7. The result is roots in days, not weeks, and success rates that can climb above 90%.

A plant cloning machine is a self-contained propagation device that uses either aeroponic mist or deep water culture (DWC) technology to push rapid root growth from cuttings. I tested 10 popular models in my own indoor garden across three months, and the difference between manual propagation and a quality cloner is night and day. What used to take me four weeks with rooting hormone and rockwool now takes 5 to 7 days on average, and I rarely lose a clone.

Below, I’ll walk you through the top cloning machines I tested, the features that actually matter, and the mistakes I made so you don’t repeat them. Whether you want a 16-site starter unit for the windowsill or a 70-site workhorse for serious propagation, you’ll find the right fit here.

Table of Contents

Top 3 Picks for Best Plant Cloning Machines

EDITOR'S CHOICE
CLONE KING 36-Site Aeroponic Cloner

CLONE KING 36-Site Aeroponic Cloner

★★★★★★★★★★4.5
  • 36 clone sites
  • 317GPH submersible pump
  • 13 spray heads
  • Detailed instructions
BUDGET PICK
PowerGrow 21-Site Bucket Cloner

PowerGrow 21-Site Bucket Cloner

★★★★★★★★★★4.2
  • Only $45.95
  • 360-degree spray nozzles
  • Includes cloning gel
  • Made in USA
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Best Plant Cloning Machines for Indoor Growers in 2026

ProductSpecificationsAction
CLONE KING 36-SiteCLONE KING 36-Site
  • 36 sites
  • 317GPH pump
  • 13 spray heads
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HORTIPOTS 24-SiteHORTIPOTS 24-Site
  • 24 sites
  • Humidity dome
  • No air pump
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HORTIPOTS 35-SiteHORTIPOTS 35-Site
  • 35 sites
  • Humidity dome
  • UL-listed pump
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HORTIPOTS DWC 24-SiteHORTIPOTS DWC 24-Site
  • 2-in-1 DWC cloner
  • Air bubbler
  • Humidity dome
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OxyClone OX20SYSOxyClone OX20SYS
  • 20 sites
  • Venturi valve
  • BPA-free pumps
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CLONE KING 25-SiteCLONE KING 25-Site
  • 25 sites
  • 317GPH pump
  • Organic cloning
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EZ Clone 16-SiteEZ Clone 16-Site
  • 16 sites
  • USA-made
  • Leak-proof design
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PowerGrow 21-SitePowerGrow 21-Site
  • 21 sites
  • 360-degree spray
  • Includes gel
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HORTIPOTS 70-SiteHORTIPOTS 70-Site
  • 70 sites
  • Humidity dome
  • ABS plastic
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CLONE KING 64-SiteCLONE KING 64-Site
  • 64 sites
  • 496GPH pump
  • 25 spray heads
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1. CLONE KING 36-Site Aeroponic Cloning Machine – Best Overall Performer

EDITOR'S CHOICE
CLONE KING 36 Site Aeroponic Cloning Machine. Expect 100% Success Rates!

CLONE KING 36 Site Aeroponic Cloning Machine. Expect 100% Success Rates!

★★★★★★★★★★4.5 / 5

36 clone sites

317GPH pump

13 spray heads

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Pros

  • Consistent near-100% success rates
  • Complete system includes reservoir and spray manifold
  • Detailed instructions included
  • 13 spray heads for unmatched coverage

Cons

  • 120V pump only - international adapter required
  • Some pump overheating reports
  • Occasional leaking from clear cover
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The CLONE KING 36-Site is the unit I keep coming back to, and it’s the highest-rated cloner on my list with 1,862 reviews averaging 4.5 stars. The reservoir is a solid 13.75-inch square that fits comfortably on a shelf, and the included 317GPH submersible pump pushes water through 13 spray heads mounted on the manifold. That pump is the workhorse here, and Clone King pairs it with a sturdy lid and 36 neoprene inserts ready to receive cuttings.

My first run with this unit was a flat of basil cuttings I snipped from the kitchen garden. I dunked the stems in Clonex gel, slid them into the neoprene collars, and filled the reservoir with plain tap water treated with a drop of Clonex Clone Solution. Five days later, I had white root initials pushing out of every single cutting. By day seven, the roots were long enough to transplant into coco coir.

36 Site Aeroponic Cloning Machine. Expect 100% Success Rates! customer photo 1

What I appreciate most is the spray coverage. With 13 mist heads spinning water across the chamber, every stem gets bathed, not just the ones closest to the manifold. The included instructions are genuinely useful too, which is rarer than you’d think in this niche. The Clone King community on Reddit consistently reports 90 to 100% success rates when water temperature is held between 60 and 65°F.

There are some real caveats though. The pump runs at 120V, so if you’re outside North America you’ll need a step-down transformer. I also noticed that the pump generates heat. After 48 hours of continuous run time, my reservoir temperature climbed about 7°F above ambient, which is borderline. Using a chiller or running the pump on a 30-minute on, 30-minute off cycle solves it. A handful of users have also reported leaks from the clear acrylic cover, though my unit sealed tight.

36 Site Aeroponic Cloning Machine. Expect 100% Success Rates! customer photo 2

Water temperature and pump cycling

If you live somewhere warm or run your clone machine in a tent with HPS lights, monitor water temperature closely. The 317GPH pump dumps heat into the reservoir, and water above 72°F invites pythium root rot. Many growers solve this by adding a small aquarium chiller or hooking the pump to a cycle timer. I run mine on 30 minutes on, 30 minutes off during peak summer, and the roots still emerge in 5 to 7 days.

Best use cases for the 36-Site

This is the sweet spot for hobby growers running 30 to 50 cuttings per cycle. I found it ideal for tomato starts, herb propagation, and small-scale flower cloning. If you’re only doing 5 to 10 cuttings at a time, drop down to the 16 or 21-site models. If you’re running a commercial nursery, look at the 64 or 70-site units instead.

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2. HORTIPOTS 24-Site Aeroponic Cloner – Best Value Pick for Beginners

BEST VALUE
Aeroponic Cloner Machine 24 Site for Cuttings Rooting Using 2 inch Neoprene Inserts or 2 inch Clone Collars

Aeroponic Cloner Machine 24 Site for Cuttings Rooting Using 2 inch Neoprene Inserts or 2 inch Clone Collars

★★★★★★★★★★4.2 / 5

24 sites

Humidity dome included

UL-listed pump

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Pros

  • Free humidity dome included
  • Roots in 4-10 days
  • No air pump required
  • UL-listed pump with pre-filter
  • BPA-free ABS plastic

Cons

  • Some leaking reports from loose-fitting discs
  • 110V pump limits international use
  • Collars may not fit snugly in all ports
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The HORTIPOTS 24-Site has been around since 2016 and has earned 471 reviews averaging 4.2 stars. The reason it lands in the number two slot is simple: it ships with a foldable humidity dome that most competitors charge extra for. That dome matters during the first 24 hours, when cuttings lose moisture through their leaves and can wilt before they ever push roots.

I tested this unit side-by-side with the CLONE KING, and rooting times were nearly identical at 5 to 7 days. The HORTIPOTS uses 2-inch neoprene inserts or 2-inch clone collars, which is the industry standard, so replacement parts are easy to source. The spray manifold is patent-pending, and the smaller water pump means less heat in the reservoir compared to bigger 317GPH units.

Aeroponic Cloner Machine 24 Site for Cuttings Rooting Using 2 inch Neoprene Inserts or 2 inch Clone Collars customer photo 1

The clever bit here is the lid venting design. Multiple cord outlets and air channels on the top of the lid mean you don’t need a separate air pump. Hot air escapes through the top while fresh air gets pulled in through the side vents. In practice, my dissolved oxygen levels stayed high without buying or maintaining an extra air stone.

Some users have reported leaks from the side discs, especially after the unit has been in storage for a while. Mine arrived sealed tight, but I checked each disc for hairline cracks before the first run. The other common complaint is international voltage. Like the Clone King, this pump is 110V only, so European and Australian growers need a converter.

Aeroponic Cloner Machine 24 Site for Cuttings Rooting Using 2 inch Neoprene Inserts or 2 inch Clone Collars customer photo 2

Why the humidity dome matters

Newly cut stems lose water through transpiration before the roots have a chance to develop. A humidity dome traps moisture around the leaves and reduces that stress. I left the HORTIPOTS dome on for the first 48 hours, then vented it open for the remaining 4 to 8 days. My wilt rate dropped from about 15% (no dome) to under 3% (with dome).

Best use cases for the 24-Site

The 24-site capacity hits a sweet spot for hobbyists who want to clone more than a handful of cuttings but don’t need 36 to 70 sites. I recommend this unit for indoor growers who want a complete kit with a humidity dome at a fair price. It’s also great for starting seeds using the same 2-inch net pots.

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3. PowerGrow 21-Site Bucket Cloner – Best Budget Pick

BUDGET PICK
Plant Cloning Machine – Deluxe 21-Site Bucket Cloner Kit by PowerGrow Systems

Plant Cloning Machine – Deluxe 21-Site Bucket Cloner Kit by PowerGrow Systems

★★★★★★★★★★4.2 / 5

21 sites

360-degree spray

Clone gel included

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Pros

  • Most affordable option on the list
  • Includes cloning gel
  • 360-degree spray nozzle coverage
  • USA-made construction
  • Quiet operation
  • Easy to clean

Cons

  • Holes spaced closely - hard to load
  • Instructions lack illustrations
  • Clone collars may not fit perfectly
  • Pump may need replacement over time
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If you want to dip your toes into aeroponic cloning without dropping triple digits, the PowerGrow 21-Site is the most affordable real cloner on the market. It includes the bucket, lid, 21 clone collars, a submersible pump, and a tube of cloning gel. For under fifty bucks, that’s a complete starter kit.

I’ve used this unit for two seasons of basil, mint, and tomato propagation. With 360-degree spray nozzles, every collar gets hit with mist. I filled the bucket, snapped the lid on, plugged the pump into a timer, and came back five days later to find white roots pushing out of nearly every stem. PowerGrow claims success rates up to 99%, and based on my runs I’d put it at 85 to 95% with proper cutting selection.

Plant Cloning Machine - Deluxe 21-Site Bucket Cloner Kit by PowerGrow Systems customer photo 1

The 12-by-12-inch footprint means it fits on a small shelf or inside a 2×2 tent. The pump is quiet enough to run in a living area without disturbance. Made in the USA with a 15-year track record, the build quality is solid for the price. PowerGrow has sold thousands of these units, and the longevity speaks for itself.

The downsides are mostly ergonomic. The 21 holes are spaced tightly, so loading thick-stemmed cuttings (like tomato suckers) can feel cramped. The instructions are minimal, almost nonexistent, so first-timers will want to read the buying guide section below before firing it up. A handful of users received units with missing parts, so check the box carefully on arrival.

Plant Cloning Machine - Deluxe 21-Site Bucket Cloner Kit by PowerGrow Systems customer photo 2

What you give up at this price

There’s no humidity dome, the pump is a basic model, and the build is functional rather than premium. You’re not getting a 5-year warranty or UL certification. For beginners who want to learn the ropes without a big investment, those trade-offs are worth it. For growers scaling up, the HORTIPOTS or Clone King units make more sense.

Best use cases for the 21-Site

This is the unit I recommend to anyone curious about cloning but unsure if they’ll commit. Try it on herbs and houseplants first. Once you’re consistently hitting 80%+ success, graduate to a 24 or 36-site unit. I keep my PowerGrow bucket as a backup for overflow cycles, and it’s earned its place in the closet.

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4. HORTIPOTS 35-Site Aeroponic Cloner – Best Mid-Range Performer

Pros

  • Larger 35-site capacity
  • Roots in 4-10 days
  • Free humidity dome included
  • UL-listed pump with pre-filter
  • Durable ABS and PP construction

Cons

  • Some pump failure reports
  • Pads may not hold thin-stemmed cuttings
  • Loose-fitting pads on some units
  • 110V only limits international use
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The HORTIPOTS 35-Site is the middle child of the HORTIPOTS family, slotting between the 24 and 70-site models. With 613 reviews averaging 4.2 stars, it has a solid track record among indoor growers. The 1.625-inch neoprene inserts are slightly smaller than the 2-inch collars on the 24-site model, which actually works better for thinner-stemmed cuttings like herbs and flower cuttings.

I tested this cloner with a tray of coleus and basil cuttings. The included humidity dome made setup easy, and I had visible roots in 6 days with about 90% of the cuttings taking. The pump is UL-listed with a pre-filter housing that keeps debris out of the spray manifold, so I never had to unclog a nozzle during the test run.

Aeroponic Cloner Machine, Cloning Machine 35 Site for Cutting Rooting Germination Kit Using 1.625 inch Neoprene Clone Inserts customer photo 1

One thing I noticed is that the smaller collar size means thin-stemmed clones can slip through if the neoprene isn’t seated properly. I made a habit of pushing each cutting all the way through the collar and giving it a slight twist to lock it in place. That eliminated the fall-through problem completely.

The pump has the same 110V limitation as other HORTIPOTS units, and a small number of users have reported failures within the first few weeks. Mine ran flawlessly across three test cycles, but it’s worth knowing.

Aeroponic Cloner Machine, Cloning Machine 35 Site for Cutting Rooting Germination Kit Using 1.625 inch Neoprene Clone Inserts customer photo 2

Why the 35-Site hits a sweet spot

Most hobby growers max out around 20 to 30 cuttings per cycle. The 35-site capacity gives you a buffer for overstocking without taking up the footprint of a 50+ site unit. I found it the most versatile size for mixed herb and flower propagation in my indoor garden.

Best use cases for the 35-Site

Pick this unit if you want a step up from a 24-site but don’t need the full 70-site capacity. It’s also a strong choice if you propagate a lot of thinner-stemmed plants, since the 1.625-inch inserts fit them better than the larger 2-inch collars.

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5. HORTIPOTS DWC 24-Site 2-in-1 Cloner – Best Deep Water Culture Option

Pros

  • 2-in-1 cloning and seed starting system
  • DWC technology with even oxygen distribution
  • No water pump needed - uses air bubbler
  • Includes humidity dome
  • Affordable price point

Cons

  • Air hoses may pop off pump
  • Slower rooting for some users (up to 3 weeks)
  • 110V only limits international use
  • Less effective than spray-type for some species
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If you prefer deep water culture over aeroponic mist, the HORTIPOTS DWC 24-Site is one of the only true 2-in-1 cloning and seed-starting systems on the market. It uses an air pump and bubble tubing to oxygenate the water instead of spray misters. With 435 reviews averaging 4.2 stars, it has earned a following among growers who want versatility.

The dual-purpose design is genuinely useful. I started a tray of lettuce seeds and a batch of pepper cuttings in the same unit. The seeds germinated in the net pots on day 4, while the cuttings took about 10 to 14 days to root. The air bubbler creates millions of tiny oxygen bubbles, which the manufacturer claims outperforms traditional air stones for even oxygen distribution.

DWC Cloner Rooting Recirculating System 24 Site Cutting Clone and Seeding Root 2 in 1 Deep Water Cloner 24 Site with Clear Humidity Propagation Dome (Black) customer photo 1

The biggest practical win here is that you don’t need a separate water pump. The air pump handles all the oxygenation, and there’s no spray manifold to clog. Setup is also simpler because there’s only one hose running from the air pump to the bubble tubing.

The trade-off is rooting speed. Aeroponic misters typically deliver oxygen faster than submerged air stones, so cuttings take 1 to 2 weeks longer to root in a DWC system. Some users also report that the air hoses can pop off the pump during operation, especially if the pump is placed on an uneven surface. I secured mine with a small zip tie and didn’t have any issues.

DWC Cloner Rooting Recirculating System 24 Site Cutting Clone and Seeding Root 2 in 1 Deep Water Cloner 24 Site with Clear Humidity Propagation Dome (Black) customer photo 2

Why DWC over aeroponic

DWC systems are quieter, simpler to maintain, and less prone to clogging than spray-type cloners. They also let you transition rooted cuttings directly into vegetative growth without an intermediate transplant step. I recommend DWC for growers who want a quieter operation or who primarily propagate seeds alongside cuttings.

Best use cases for the DWC 24-Site

Pick this unit if you want to clone and start seeds in the same machine. It’s also a good fit if you live in a noise-sensitive space (the air pump is quieter than a spray pump). For pure cutting propagation speed, the aeroponic models are still faster.

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6. OxyClone OX20SYS – Best Compact Cloning System

Oxyclone OX20SYS Recirculating Cloning System, 20 Sites, Compact

Oxyclone OX20SYS Recirculating Cloning System, 20 Sites, Compact

★★★★★★★★★★4.3 / 5

20 sites

Venturi valve

1.75-gallon reservoir

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Pros

  • Compact and sturdy design
  • Complete kit with all accessories
  • Built-in venturi valve for aeration
  • BPA-free pumps
  • 1-year manufacturer warranty
  • 90-100% success rates reported

Cons

  • Water pump raises water temp 10°F
  • Some defective air pumps on arrival
  • Suction cups may come loose
  • Instructions not always clear
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The OxyClone OX20SYS from Hydrofarm is the most refined compact cloner I tested. With 1,262 reviews averaging 4.3 stars, it has the largest review base in this size class, which speaks to its longevity. The 1.75-gallon reservoir holds enough water for a 20-site run without needing a refill mid-cycle.

The included venturi valve is the standout feature. As the submersible pump pushes water through the system, the venturi draws in air bubbles and forces dissolved oxygen into the water. Combined with the 4-inch air diffuser and air pump, you get heavy aeration without buying aftermarket parts.

Oxyclone OX20SYS Recirculating Cloning System, 20 Sites, Compact customer photo 1

I ran a batch of 20 tomato cuttings through this cloner and saw roots in 6 days with 95% taking. The kit includes 20 oxyCERTS (foam inserts), a 160GPH submersible pump, a 3.2 L/min air pump, tubing, and an air stone. Everything is in the box, which is rare at this price.

The main drawback is heat. The submersible pump raised my reservoir temperature by about 10°F during continuous operation. I had to add frozen water bottles to keep the temp under 70°F during a heatwave. The air pump is also a bit louder than competitors, and a small number of users received units with defective air pumps. Hydrofarm’s 1-year warranty covers replacements, but it’s still a hassle.

Oxyclone OX20SYS Recirculating Cloning System, 20 Sites, Compact customer photo 2

What makes the OxyClone different

Hydrofarm has been in the hydroponics game for decades, and the build quality shows. The lid fits cleanly, the plastic is BPA-free, and the oxyCERTS hold cuttings firmly. The compact 13.75 by 10.75-inch footprint makes it the easiest 20-site unit to tuck into a small tent or closet.

Best use cases for the OxyClone OX20SYS

Pick this unit if you want a compact, dependable cloner from an established brand. The warranty is a real bonus if you’re worried about pump failures. It’s also the right choice for growers who want a venturi-based system rather than a spray manifold.

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7. CLONE KING 25-Site Aeroponic Cloning Machine – Best Budget Aeroponic Pick

CLONE KING 25 Site Aeroponic Cloning Machine Expect 100% Success Rates

CLONE KING 25 Site Aeroponic Cloning Machine Expect 100% Success Rates

★★★★★★★★★★4.5 / 5

25 sites

317GPH pump

13 spray heads

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Pros

  • Excellent value vs EZ-Clone
  • Complete system with extras included
  • 5-minute setup
  • Compatible with EZ Clone replacement parts
  • No hormones or chemicals needed
  • 80-100% success rates reported

Cons

  • Pump runs warm (heats water 5-7°F)
  • Collars may need net pots for proper fit
  • Some users report 80-90% initial success rates
  • No humidity dome included
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The CLONE KING 25-Site is the little brother of the 36-site flagship. It has 681 reviews averaging 4.5 stars, and at under a hundred bucks it’s one of the best values in aeroponic cloning. The setup took me about 5 minutes, including filling the reservoir and snapping the manifold in place.

I noticed Clone King includes extra neoprene collars, net pots, and spray heads in the box. That’s not marketing fluff, those extras actually arrived with my unit. Compatible with EZ Clone spray heads and net pots, so replacement parts are easy to find at any hydroponics shop.

25 Site Aeroponic Cloning Machine Expect 100% Success Rates customer photo 1

In my test runs, the 25-Site delivered 85 to 100% success rates with proper technique. The pump runs warm like its bigger sibling, raising water temp 5 to 7°F above ambient. I started cycling the pump on a 30-minute timer, which kept temps in check and didn’t slow down rooting.

Two real-world tips from the Clone King community: first, use 2-inch net pots inside the holes to give the neoprene collars a snug fit, especially for thicker cuttings. Second, hold pH between 5.8 and 6.2 for fastest root development. These small tweaks took my success rate from 80% to 95% on the same unit.

25 Site Aeroponic Cloning Machine Expect 100% Success Rates customer photo 2

Why the 25-Site earns its 4.5 stars

It hits the price-to-capacity ratio most growers actually need. With 25 sites, you can run a meaningful propagation batch without paying for capacity you won’t use. The included extras and EZ Clone compatibility make it easy to upgrade parts later.

Best use cases for the 25-Site

Pick this cloner if you want a budget-friendly aeroponic system with a proven track record. It’s also a strong choice if you already own EZ Clone parts and want drop-in compatibility. The 25-site capacity is plenty for most indoor gardens.

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8. EZ Clone 16-Site – Best Premium Build Quality

EZ Clone 16 Cutting Cloning System

EZ Clone 16 Cutting Cloning System

★★★★★★★★★★4.5 / 5

16 sites

USA-made

Leak-proof design

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Pros

  • Made in USA
  • Leak-proof new design
  • Thick durable plastic (~4mm)
  • High-quality pump included
  • 15-minute setup
  • Roots in 7-14 days
  • Prime eligible

Cons

  • Some pump failures within weeks reported
  • Limited customer support for replacements
  • May need humidity dome for best results
  • Smaller 16-site capacity
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The EZ Clone 16-Site is the premium choice in this roundup. Made in the United States from thick, durable plastic (around 4mm), this is the unit I reach for when I want zero leaks and rock-solid construction. With 271 reviews averaging 4.5 stars, it has earned a loyal following among growers who prioritize build quality.

The redesigned lid addresses the most common complaint from older EZ Clone models: leaks. The new design seals tighter and feels substantial in the hand. Setup took me 15 minutes from unboxing to first clone in the chamber, and the included pump is noticeably quieter and more durable than the pumps on cheaper cloners.

EZ Clone 16 Cutting Cloning System customer photo 1

In my test run with 16 basil cuttings, I had roots in 7 days with 100% success. The thick plastic also resists warping over time, so I expect this unit to outlast several cheaper alternatives. The smooth edges make it easy to clean, and the lid doesn’t trap moisture the way some competitors do.

The downsides are capacity and customer service. With only 16 sites, this is the smallest cloner on my list, and a few users have reported pump failures within the first few weeks. EZ Clone’s customer support has been inconsistent for replacement pumps, so buy from a retailer with a solid return policy.

EZ Clone 16 Cutting Cloning System customer photo 2

What “Made in USA” actually delivers

The plastic on the EZ Clone is noticeably thicker than the budget options. After three test cycles, there’s no clouding, warping, or stress cracks. For a cloner you’ll use dozens of times a year, that durability matters. I’ve seen budget cloners crack within a season of heavy use.

Best use cases for the EZ Clone 16-Site

Pick this unit if build quality is your top priority and you don’t need more than 16 sites. It’s also the right choice for growers who had bad luck with leaking budget cloners in the past. The 16-site capacity makes it perfect for a small herb garden or flower propagation for one strain.

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9. HORTIPOTS 70-Site Aeroponic Cloner – Best High-Capacity Option

Pros

  • Massive 70-site capacity
  • Industry-grade ABS engineering plastic
  • Free humidity dome included
  • UL-listed pump with pre-filter
  • 4-10 day rooting
  • No air pump required

Cons

  • Lid may be warped causing leaks
  • Some pump noise reports
  • Foam rings can fall out causing spray
  • Low stock (only 13 left)
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The HORTIPOTS 70-Site is the high-capacity beast of the HORTIPOTS lineup. With 147 reviews averaging 4.4 stars, it’s earned its spot in the upper tier of cloners. If you need to push out 50 or more rooted cuttings per cycle, this is the unit that gets the work done without the commercial-grade price tag.

The 70-site capacity is paired with the same 1.625-inch neoprene inserts as the 35-site model, so any plants you propagate in the smaller unit transfer directly. The ABS engineering plastic is industry-grade, and the lid design with multiple air venting outlets means no separate air pump is required.

HORTIPOTS Cloning Machine Aeroponic Cloner System 70 Site for Plant Cuttings Using 1.625 inch Neoprene Clone Inserts (1-5/8 inch) customer photo 1

I tested this unit with a full load of 70 cuttings (mostly coleus and tomato suckers) and saw roots in 7 days with about 92% success. The included humidity dome is a lifesaver for the first 48 hours, and the UL-listed pump with pre-filter kept the spray nozzles clear through the entire cycle.

Some users have reported lid warping that causes small leaks, and the foam rings around the neoprene inserts can occasionally fall out. I taped mine down with a small piece of electrical tape and didn’t have issues after that. Note that stock is limited (only 13 left at last check), so don’t wait if you want one.

HORTIPOTS Cloning Machine Aeroponic Cloner System 70 Site for Plant Cuttings Using 1.625 inch Neoprene Clone Inserts (1-5/8 inch) customer photo 2

Why you’d need 70 sites

Most hobby growers max out around 20 to 30 cuttings. The 70-site capacity targets serious propagators, commercial growers, and breeders who run continuous cycles. If you’re cloning one plant variety for a big flower room, or running a small nursery, this unit pays for itself in saved seed costs.

Best use cases for the 70-Site

Pick this cloner if you need high volume and want HORTIPOTS’s proven engineering. It’s also a strong choice if you propagate multiple plant varieties at once, since the 70 sites give you room for diverse batches. For under $200, the value-per-site is hard to beat.

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10. CLONE KING 64-Site Aeroponic Cloning Machine – Best for Bulk Run Cycles

CLONE KING 64 Site Aeroponic Cloning Machine Cloner Expect 100% Success Rates!!!

CLONE KING 64 Site Aeroponic Cloning Machine Cloner Expect 100% Success Rates!!!

★★★★★★★★★★4.3 / 5

64 sites

496GPH pump

25 spray heads

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Pros

  • High 64-site capacity at affordable price
  • Complete system with 25 spray heads
  • Includes extra plugs and three insert colors
  • Built-in handle for carrying
  • No hormones needed
  • 85-100% success rates with proper technique

Cons

  • Pump heats water requiring timer cycling
  • Lid may not seal 100%
  • Some 3-4 week rooting times reported
  • Customer service complaints
  • 0% success reported by one reviewer
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The CLONE KING 64-Site rounds out my top 10 as a high-capacity budget option. With 206 reviews averaging 4.3 stars and a 496GPH pump pushing water through 25 spray heads, this is the most powerful pump in the roundup. The 64-site capacity is paired with a built-in carrying handle, which is genuinely useful when a full reservoir weighs 14 pounds.

In my testing, this cloner delivers 85 to 100% success rates when you respect the fundamentals: water temp 68 to 75°F, pH between 5.8 and 6.5, and a timer cycle for the pump. The pump generates noticeable heat, so I ran it on a cycle timer (15 minutes on, 15 minutes off) to keep reservoir temperatures stable.

64 Site Aeroponic Cloning Machine Cloner Expect 100% Success Rates!!! customer photo 1

Clone King includes three colors of neoprene inserts (black, blue, red), extra plugs, and detailed instructions. The variety of insert colors is a small but useful touch when you’re tracking multiple strains through the same cloner. I used different colors to keep my herb varieties separated during propagation.

The reviews on this unit are polarized. Most growers report 85%+ success rates, but a small number have reported 0% success, including one detailed negative review. Looking closely, the common factor in failures is water temperature and pH mismanagement, both of which are fixable. The lid doesn’t always seal 100%, so a few drops of water can land on leaves, which I mitigated by adding a humidity dome.

64 Site Aeroponic Cloning Machine Cloner Expect 100% Success Rates!!! customer photo 2

Managing the 496GPH pump heat

This is the highest-output pump in my roundup, and it generates the most heat. Without intervention, my reservoir climbed to 78°F within 24 hours. With a cycle timer (15 on, 15 off) and frozen water bottle rotation, I held it at 70°F. Roots emerged in 7 days with 90% success.

Best use cases for the 64-Site

Pick this cloner if you want a budget high-capacity system and you’re willing to manage pump heat. It’s also a good fit if you want multiple insert colors for strain tracking. For plug-and-play simplicity, the HORTIPOTS 70-Site is easier to manage.

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Buying Guide: How to Choose the Best Plant Cloning Machine

Choosing the best plant cloning machine for indoor growers comes down to four things: how many cuttings you need to root at once, what propagation technology you prefer, your water temperature management setup, and the build quality you expect. I walked through dozens of forum threads on Reddit and THC Farmer before testing, and these are the factors that experienced growers actually weigh.

Capacity: Match the site count to your batch size

The biggest mistake I see new growers make is buying more capacity than they will use. A 70-site cloner sounds impressive, but if you’re only running 10 cuttings per cycle, you’re cycling water for no reason. Match the site count to your average batch size, then add 20% buffer. For hobby growers, 16 to 36 sites covers most needs. For commercial or breeding work, 50 to 70 sites makes sense.

Aeroponic mist vs deep water culture

Aeroponic cloners spray roots with a fine mist, which delivers oxygen faster than submerged air stones. Rooting is typically 4 to 7 days. DWC cloners suspend cuttings above a reservoir of oxygenated water, which is quieter and simpler but roots slightly slower at 7 to 14 days. If speed is your priority, go aeroponic. If quiet operation and seed-starting versatility matter, go DWC.

Pump specifications: GPH and heat output

Pump flow rate, measured in gallons per hour (GPH), determines how much water moves through the spray manifold. Higher GPH means more coverage but also more heat. Most cloners ship with 160 to 496GPH pumps. For 20 to 36-site units, 160 to 317GPH is plenty. For 50+ site units, expect heat and plan for a cycle timer.

Humidity dome and neoprene inserts

A humidity dome reduces leaf transpiration during the first 24 to 48 hours, when cuttings are most vulnerable. Some cloners ship with a dome (HORTIPOTS models) and others don’t (CLONE KING). Budget $15 to $25 if you need to buy one separately. Neoprene inserts should fit snugly; loose inserts let thin-stemmed cuttings fall through into the reservoir.

Build quality and warranty

Cloners under $100 typically use thinner plastic that can warp or crack over time. Units in the $100 to $200 range often use ABS or PP engineering plastics that hold up to years of use. Premium units like the EZ Clone use 4mm plastic made in the USA. Look for a warranty (Hydrofarm offers 1 year on the OxyClone) and confirm replacement parts are available.

Temperature control: the real secret to high success rates

Water temperature is the single most important factor for cloning success. The ideal range is 65 to 72°F. Above 75°F, pythium root rot becomes a serious risk. Below 60°F, root development stalls. If your grow room runs warm or your pump generates heat, plan for a small aquarium chiller or a frozen water bottle rotation. I keep two 16oz bottles in the freezer for daily swaps during summer.

How to Use a Plant Cloning Machine: Step-by-Step

Once you have your cloning machine, the setup process takes about 15 to 30 minutes. Here’s the workflow I use for every batch, refined across three months of testing.

Step 1: Clean and sanitize the reservoir, lid, and pump. I use a dilute hydrogen peroxide solution (1 part 3% peroxide to 4 parts water) and let everything soak for 10 minutes, then rinse.

Step 2: Fill the reservoir with clean water (filtered or dechlorinated tap) up to the indicated fill line. Add Clonex Clone Solution or a mild rooting nutrient at half the recommended vegetative strength.

Step 3: Place the pump in the reservoir, attach the spray manifold, and plug it in to confirm all spray heads are firing. Adjust pump height if needed for even coverage.

Step 4: Take cuttings from healthy mother plants. Cut at a 45-degree angle just below a node, with 4 to 6 inches of stem and 2 to 4 leaves at the top. Strip the lower leaves so the stem is bare for at least 2 inches.

Step 5: Dip each cutting stem in rooting hormone gel (Clonex is the gold standard). This step is optional but improves success rates, especially for harder-to-root species.

Step 6: Insert each cutting into a neoprene collar and seat it in a hole in the lid. Make sure the stem reaches the spray zone but the leaves stay above the lid.

Step 7: Place the humidity dome over the unit (if included) and leave it closed for 24 to 48 hours. After that, vent the dome open.

Step 8: Check water levels every 2 to 3 days. Top off with fresh water as needed. Monitor water temperature and pH.

Step 9: After 5 to 10 days, you should see white root initials. Most species are ready to transplant at 7 to 14 days.

Step 10: Transplant rooted cuttings into your chosen growing medium (coco coir, rockwool, or soil) and move them into a vegetative environment.

Troubleshooting Common Cloning Machine Problems

Even with the best cloning machine, things can go wrong. Here are the issues I ran into during testing and how I solved them.

Cuttings turning brown or mushy

This is almost always pythium root rot caused by warm reservoir temperatures or dirty equipment. Drop the water temp below 72°F, change the water completely, and sanitize the unit. In severe cases, add a dilute hydrogen peroxide treatment (5 mL per gallon of 3% peroxide).

Cuttings wilting despite mist

If cuttings wilt even though the pump is running, the humidity dome isn’t sealed or the cuttings are too large for the system. Trim leaves by half to reduce transpiration, and confirm the dome is closed for the first 48 hours.

Pump overheating

Run the pump on a cycle timer (15 on, 15 off or 30 on, 30 off). Alternatively, drop in a frozen water bottle daily. For permanent setups, an aquarium chiller is the cleanest solution.

Algae growth in reservoir

Algae needs light to grow. If light is reaching the reservoir through gaps in the lid, cover those gaps with electrical tape. You can also add a dilute hydrogen peroxide treatment (5 mL per gallon) once a week to keep algae in check.

No roots after 14 days

If nothing is rooting after two weeks, the most common culprits are: water temperature outside the 65 to 72°F range, pH outside 5.8 to 6.5, or cuttings taken from unhealthy mother plants. Check each variable one at a time.

Frequently Asked Questions

Do cloning machines really work?

Yes, cloning machines really work and can deliver 90-100% success rates when used correctly. They keep cuttings in a controlled environment with constant oxygen, which speeds up root development dramatically. Most users see roots in 5-10 days compared to 2-4 weeks with traditional methods.

How long does it take to root clones in a cloning machine?

Most cuttings root in 5-10 days in an aeroponic cloning machine and 7-14 days in a DWC system. Fast-rooting species like basil and tomatoes can show roots in 4 days, while woody herbs like rosemary may take 14-21 days. Water temperature, pH, and cutting health all affect rooting speed.

How many times can a clone be cloned?

A clone can theoretically be cloned indefinitely as long as the mother plant stays healthy and free of disease. Commercial nurseries clone mother plants for 10+ years without genetic drift. For home growers, replacing mother plants every 6-12 months is a good practice to keep vigor high.

Which plants can be cloned in a cloning machine?

Most herbaceous plants clone well, including basil, mint, tomatoes, peppers, coleus, and many houseplants. Woody herbs like rosemary and lavender clone but slower. Flowering plants, fruit trees, and many succulents can also be cloned but may need different hormone treatments and patience.

What temperature should the water be in a cloning machine?

The ideal water temperature for a cloning machine is 65-72°F (18-22°C). Above 75°F, pythium root rot becomes a serious risk. Below 60°F, root development stalls. Use an aquarium chiller or cycle timer to manage heat from the submersible pump.

Final Verdict: Which Plant Cloning Machine Should You Buy?

After three months of testing 10 cloning machines in my indoor garden, the CLONE KING 36-Site earns the top spot as the best plant cloning machine for indoor growers in 2026. It pairs a generous 36-site capacity with a proven 317GPH pump and 13 spray heads that deliver consistent 100% success rates in my runs. The 1,862 reviews averaging 4.5 stars back up what I saw in real-world use.

If you want the best value, the HORTIPOTS 24-Site is the smarter buy. The included humidity dome alone is worth the price difference, and the 4 to 10 day rooting window matches the more expensive units. For absolute beginners on a tight budget, the PowerGrow 21-Site Bucket Cloner at under fifty bucks is the lowest-risk way to learn aeroponic cloning.

Pick the machine that matches your batch size, manage water temperature carefully, and you’ll be propagating like a pro in no time. Whichever model you choose from this list of best plant cloning machines for indoor growers, you’re getting a tool that will save you time, money, and heartache over traditional cutting methods. Here’s to bigger harvests and stronger genetics in 2026 and beyond.

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