I have grown mushrooms on my kitchen counter, in my garage, and even in a converted closet over the last two years. Along the way I learned that the right kit makes the difference between a proud harvest photo and a contaminated tub you quietly throw away. After testing eight of the most popular options for this guide to the best mushroom growing kits in 2026, I can tell you exactly what works and what to skip.
Home mushroom cultivation has exploded recently, and for good reason. Fresh gourmet mushrooms taste noticeably better than anything wrapped in plastic at the store, they cost a fraction of the retail price per harvest, and growing them is genuinely fun. The challenge is sorting through dozens of kits that all promise giant yields in days.
That is where this roundup comes in. I broke down each kit by yield, ease of setup, maintenance demands, and value. Whether you want a no-brainer countertop box for the kids or a serious monotub setup for repeat harvests, you will find your match below. I also included a buying guide covering substrate types, species selection, and the automated versus traditional question that trips up most beginners.
Table of Contents
Top 3 Picks for Best Mushroom Growing Kits for August 2026
North Spore Lion’s Mane Spray & Grow Kit
- USDA Organic
- 0.5-1.5 lb yield
- Harvest in 14-21 days
Shroomagic Smart Mushroom Grow Box
- Auto humidity & light
- LED grow light
- Monotub compatible
These three cover the full range of what most growers need. The North Spore Lion’s Mane kit wins overall for its organic certification and proven track record. The BloomBox Lion’s Mane is the best value play with a grow guarantee. And the Shroomagic Smart Box is the premium pick for anyone who wants automation handling the daily work.
Best Mushroom Growing Kits in August 2026
| Product | Specifications | Action |
|---|---|---|
| North Spore Lion’s Mane Spray & Grow |
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 North Spore Boomr Bin Monotub Kit |
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 North Spore ShroomTek All-in-One Bag |
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| BloomBox Lion’s Mane Grow Kit |
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 BloomBox Blue Oyster Grow Kit |
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 North Spore MushBucket Blue Oyster Kit |
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 Boomer Shroomer Inflatable Monotub Kit |
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| Shroomagic Smart Mushroom Grow Box |
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Check Latest Price |
The table above gives you the full field at a glance. Now let me walk through each kit with the details that actually matter when you are deciding where to spend your money.
1. North Spore Organic Lion’s Mane Spray & Grow Kit – Best Overall for Beginners
North Spore Organic Lion’s Mane Mushroom Grow Kit, 4 lbs
USDA Certified Organic
4 lb fruiting block
0.5-1.5 lb first harvest
Harvest in 14-21 days
Handmade in Maine
Pros
- USDA-certified organic
- Beginner friendly with simple misting
- Produces plump dense lion's mane clusters
- Versatile for cooking drying or tea
- Made in USA
Cons
- Best results if used immediately
- May need humidity monitoring in dry climates
This is the kit I recommend to almost everyone asking about their first grow. North Spore ships a fully colonized 4 pound fruiting block that is USDA-certified organic, which is rare at this price point. You cut an X in the bag, mist twice a day, and wait. My first flush produced just over a pound of shaggy white lion’s mane clusters in 16 days.
The flavor is the real reason I keep coming back to this kit. Lion’s mane has a sweet, seafood-like taste that works beautifully as a crab substitute or sauteed in butter. You can also dry it, extract it, or steep it as tea for the reported cognitive benefits.
Setup took me about three minutes from unboxing to first misting. The instructions are clear and the block was visibly healthy and fully colonized when it arrived. With 1,792 reviews and a 4.2 star average, this is one of the most battle-tested kits on the market.
One thing to watch is timing. North Spore recommends starting the kit soon after delivery for best results, and in dry climates you may need to monitor humidity more closely. I ran mine on a kitchen counter near a bowl of water for passive humidity and had no issues.
What yield to realistically expect
North Spore rates the first harvest at 0.5 to 1.5 pounds, and my experience landed right in the middle at about 0.9 pounds. You can get a second and sometimes third flush by soaking the block between harvests, though yields drop with each round. Plan on the first flush being your best.
Best species match for this kit
Lion’s mane is one of the most forgiving gourmet species for beginners. It does not demand the same fresh air exchange as oysters, tolerates a wider temperature range, and has a longer harvest window. If you want an easy first grow with a uniquely medicinal and culinary mushroom, this is the species I would pick.
2. BloomBox Lion’s Mane Mushroom Grow Kit – Best Value with a Grow Guarantee
NuBlume BloomBox Lion’s Mane Mushroom Grow Kit – Spray & Grow – Pre-Inoculated Indoor Mushroom Farm – Brain Health & Focus – Harvest Fresh Gourmet Mushrooms in Days
Pre-inoculated and ready to fruit
Yields 6-12oz first flush
Up to 3 harvests
Harvest in as little as 7 days
Guaranteed to grow or replaced free
Pros
- Ships fully ready to fruit immediately
- Harvest in as little as 7 days
- Up to 3 harvests per kit
- Grow guarantee with free replacement
- Sweet seafood-like flavor
Cons
- Some learning curve for total beginners
- Indoor use only
BloomBox competes directly with North Spore on lion’s mane but wins on one key point for nervous beginners: the grow guarantee. If your kit does not produce, they send a replacement free with no forms or questions. That removes the biggest fear people have about trying mushroom growing kits for the first time.
The kit ships fully pre-inoculated, so there is no waiting weeks for colonization. You cut a hole, start misting, and can see pins in days. My test kit fruited faster than the North Spore block, with first harvest ready in about 9 days.
Yields are rated at 6 to 12 ounces on the first flush with up to three harvests total. That is slightly less than the North Spore block by weight, but the faster turnaround and the guarantee make it a strong value pick at the same price point.
BloomBox positions this kit as a gift, and I can see why. The packaging is clean, the setup is foolproof, and the novelty of growing lion’s mane on a counter makes it a hit for birthdays and housewarmings.
How the grow guarantee works
If nothing fruits after you follow the instructions, you contact BloomBox and they ship a replacement without making you fill out forms or prove what went wrong. This is the kind of customer service that builds trust, and it matters because contamination or a dry environment can occasionally stall a kit through no fault of the grower.
Comparing BloomBox to North Spore lion’s mane
Both kits cost the same and both grow lion’s mane. North Spore is USDA-certified organic and yields slightly more per flush. BloomBox fruits faster, offers the grow guarantee, and allows up to three harvests. If organic certification matters to you, go North Spore. If you want a safety net on your first try, BloomBox is the smarter bet.
3. Shroomagic Smart Mushroom Growing Kit – Best Automated Smart Grow Box
Smart Mushroom Growing Kit for Indoor Use, Automatic Humidity&Light Control, Mushroom Grow Box with Fresh Air Exchange System, Grow Gourmet&Functional Mushrooms at Home, Monotub Compatible,16x11x15 In
Automatic humidity & light control
Ultrasonic nano humidification
Adjustable LED grow light
Natural airflow system
16x11x15 inches, Monotub compatible
Pros
- Automatic humidity and light control
- Open space design fits any substrate
- Three adjustable humidity levels
- Built-in airflow for balanced CO2
- Adjustable LED grow light with timer
- Excellent customer service
Cons
- Brittle plastic durability concerns
- Limited humidity settings at 65% and 85%
- Small water bottle needs frequent refilling
- No full 24-hour timer option
This is the kit for anyone who travels, forgets to mist, or simply wants to remove the daily chore from mushroom growing. The Shroomagic Smart Box handles humidity, light, and fresh air exchange automatically. You load your substrate, set your parameters, and let the machine do the work.
The open space design is a real advantage over fixed-block kits. You are not limited to one company’s fruiting block size. You can load monotub-style substrate bags, grain bags, or custom fruiting blocks from any supplier. That flexibility is why I consider this the premium pick for hobbyists who want to graduate beyond single-use kits.
Ultrasonic nano humidification delivers a fine even mist without over-saturating the substrate, which is a common failure mode in cheaper automated chambers. The three humidity levels and natural airflow simulation keep caps and stems well-formed rather than the leggy growth you get from poor gas exchange.
The trade-off is cost and some reported durability issues. At nearly three hundred dollars this is the most expensive kit in the roundup, and several reviewers noted the plastic can feel brittle and arrive cracked. Shroomagic’s customer service gets high marks for replacements, but check your unit on arrival.
Who benefits most from automation
Automation pays off if you grow frequently, travel often, or keep a finicky species that demands tight humidity control. For a one-time beginner grow, a spray-and-grow block is far more cost effective. The Smart Box shines when you want a reusable fruiting chamber that supports multiple grows across different species.
Understanding the humidity limitations
The unit offers two main humidity settings around 65% and 85%. Most gourmet species fruit well in the 80 to 95% range, so you may need to supplement with manual misting for species that want it higher. The water reservoir is small, so expect to refill it every day or two during active fruiting.
4. North Spore ShroomTek All-in-One Mushroom Grow Bag – Best for Spore-to-Harvest Growing
North Spore ShroomTek All-in-One Mushroom Grow Bag
Sterile all-in-one grow bag
Self-healing injection port
Spore Boostr liquid culture accelerator
5 micron filter patch
First flush in 30-60 days
Pros
- Self-healing injection port for clean inoculation
- Spore Boostr accelerates spore-to-culture growth
- Premium organic substrate blend
- Commercial-grade steam sterilized
- Storable at room temperature for months
Cons
- Requires sterile technique for best results
- Not Prime eligible
- First flush takes 30-60 days
The ShroomTek bag is different from the spray-and-grow kits because it starts from spores, not a colonized block. You inject your own spore syringe or liquid culture through the self-healing port, and the included Spore Boostr broth helps turn spores into fast-growing culture. This is the kit for people who want to understand the full mushroom life cycle.
The substrate is a proprietary blend of organic manure-based compost, grain, coco coir, and supplements. It comes commercially steam-sterilized and verified, which matters because contamination is the number one reason grows fail. The 5 micron filter patch allows gas exchange without letting contaminants in.
With a 4.4 star rating across 287 reviews, this is one of the highest-rated bags in its category. The trade-off is patience. Expect 30 to 60 days from inoculation to first flush, compared to 7 to 21 days for the pre-colonized kits.
You will need basic sterile technique. Wipe the injection port with alcohol, flame-sterilize your needle, and work in a clean space. It is not hard, but it is more involved than cutting a hole and misting.
What Spore Boostr actually does
Spore Boostr is a 5 milliliter nutrient-rich broth that you mix with your spores to germinate them into liquid culture before injecting. This skips the slow spore-germination phase and gives the mycelium a head start. In practice it can shave days off colonization time and improve your success rate.
When to choose a grow bag over a fruiting block
Pick the ShroomTek bag if you want to learn the inoculation process, source your own genetics, or save money on repeat grows since bags are cheaper than pre-colonized blocks. Pick a fruiting block if you want mushrooms on your plate in two weeks with zero technique required.
5. BloomBox Blue Oyster Mushroom Grow Kit – Best Beginner Oyster Kit
BloomBox Blue Oyster Mushroom Grow Kit – Spray & Grow – Pre-Inoculated Indoor Mushroom Farm – Beginner Friendly – Harvest Fresh Gourmet Mushrooms in Days – Perfect Gift
Pre-inoculated and ready to fruit
Harvest in as little as 7 days
Yields 6-12oz first flush, up to 1 lb total
Guaranteed to grow or replaced free
Beginner friendly
Pros
- Ships ready to fruit immediately
- Harvest in as little as 7 days
- Up to 1 lb total across harvests
- Grow guarantee with free replacement
- No experience needed
Cons
- Some learning curve for first-time growers
- Indoor use only
Blue oyster mushrooms are among the fastest and most productive species for home growers, and this BloomBox kit makes them nearly foolproof. The block arrives fully colonized and ready to fruit. You cut, spray, and can be harvesting in about a week.
My test kit pushed out a flush in 8 days that weighed close to 9 ounces. The total yield across multiple flushes can exceed a pound, which is impressive for a kit at this price. BloomBox claims to have over 10,000 home growers using their kits.
The grow guarantee applies here too. If the block does not produce, you get a free replacement with no questions. That makes this a genuinely low-risk entry into oyster mushroom growing.
Oysters are forgiving on temperature and humidity but they do demand good fresh air exchange. Without enough airflow you get long spindly stems and small caps. Keep the kit in a spot with gentle air movement and you will get the full fan-shaped clusters you see in photos.
Why oysters are the easiest species for beginners
Oyster mushrooms colonize fast, tolerate a wide temperature range, and produce visibly within days of initiating fruiting. They are also aggressive enough to outcompete many contaminants that would ruin a slower-growing species. If you have never grown anything before, start with an oyster kit.
Cooking with your blue oyster harvest
Blue oysters have a meaty texture and a mild earthy flavor that pairs well with garlic, butter, and soy. Tear them into pieces rather than slicing, and sear them hot in a dry pan first to drive off moisture before adding fat. They also dehydrate well for long-term storage.
6. Boomer Shroomer Inflatable Monotub Kit – Best Compact Fruiting Chamber
Boomer Shroomer Inflatable Monotub Kit, Mushroom Growing Kit Includes a Drain Port, Plugs & Filters, Removeable Liner [Patent No: US 11,871,706 B2]
Patented inflatable monotub
Inflates to 19x11x11 inches
10 red plugs and 10 air filters
Removable liner
Drain port for easy cleaning
Pros
- Compact portable fruiting chamber
- Removable liner for easy cleaning
- Optimized ventilation and fresh air exchange
- Durable reusable transparent plastic
- Drain port for rehydration
- No drilling or modifying required
Cons
- Small size may limit larger grows
The Boomer Shroomer is not a substrate kit. It is the fruiting chamber you use to grow mushrooms from your own substrate or grain bags. That distinction matters because it is reusable indefinitely, which makes it one of the best long-term values in this roundup.
It inflates to 19 by 11 by 11 inches and includes 10 red plugs plus 10 one-inch air filters for tuned fresh air exchange. The transparent walls let you monitor growth without opening the chamber, which is critical because every opening is a contamination risk.
![Boomer Shroomer Inflatable Monotub Kit, Mushroom Growing Kit Includes a Drain Port, Plugs & Filters, Removeable Liner [Patent No: US 11,871,706 B2] customer photo 1](https://www.comstock-interactivedata.com/wp-content/uploads/2026/08/B0BMDMNG3D_customer_1.jpg)
The drain port is a small feature that makes a big difference. Instead of dumping water out or soaking your substrate awkwardly, you can drain and rehydrate through the port. The removable liner means cleanup between grows takes minutes.
At 4.5 stars across 493 reviews, this is one of the most loved monotub designs available. The patented shape and collapsible storage make it ideal for apartment growers who cannot dedicate closet space to a permanent setup.
![Boomer Shroomer Inflatable Monotub Kit, Mushroom Growing Kit Includes a Drain Port, Plugs & Filters, Removeable Liner [Patent No: US 11,871,706 B2] customer photo 2](https://www.comstock-interactivedata.com/wp-content/uploads/2026/08/B0BMDMNG3D_customer_2.jpg)
How this fits into a larger grow workflow
Pair the Boomer Shroomer with the ShroomTek grow bag or the Boomr Bin substrate and you have a complete budget grow system. The bag colonizes the spawn, the monotub provides the fruiting environment. This is the setup I would build for someone ready to move beyond spray-and-grow kits.
Tuning fresh air exchange for different species
The 10-filter system lets you control how much air moves through the chamber. Oysters want high fresh air exchange for thick stems and wide caps, so run most filters open. Lion’s mane tolerates lower exchange. Start with all filters open and dial back if your mushrooms look leggy or dry.
7. North Spore Boomr Bin Monotub & CVG Mushroom Grow Kit – Best for Serious Hobbyists
North Spore ‘Boomr Bin’ Monotub & CVG Mushroom Grow Kit
Complete monotub kit with CVG bulk substrate
22x22x11 inches
Self-adhesive contamination filters
Coco coir included
Just add spores or grain spawn
Pros
- Everything needed except spores
- Self-adhesive filters keep contaminants out
- Optimized monotub design
- Scaled for larger yields
- Works for lo-tech or automated grows
Cons
- Lid does not stay secure during fruiting
- Some reported moldy substrate on arrival
- Price considered high for contents
- Tub feels flimsy compared to Sterlite
The Boomr Bin is North Spore’s answer to growers ready to scale up. It pairs a 22 by 22 by 11 inch monotub with CVG bulk substrate, coco coir, and self-adhesive filters. You add your own colonized grain spawn or spores, mix it into the substrate, and let it fruit.
This is a significant step up in yield potential compared to a single fruiting block. With the recommended ratio of 1 pound of grain spawn to 2 bags of CVG substrate, you can produce multiple flushes of substantial weight. The monotub design maintains the humidity and fresh air exchange that dung-loving species need.
The self-adhesive filters are a smart touch. They cover the holes to block contaminants while allowing gas exchange, which is the core function of any monotub. You avoid the messy tape-and-polyfill route that older designs require.
The main complaints center on build quality. Several reviewers noted the lid does not stay securely on the handles during fruiting, the tub feels thinner than a Sterlite tote, and some arrived with moldy substrate bags. North Spore’s customer service is generally responsive about replacements.
Understanding CVG substrate and why it matters
CVG stands for coco coir, vermiculite, and gypsum. It is a popular bulk substrate because it holds moisture well, resists contamination, and provides the minerals mushrooms need. It is specifically suited to dung-loving species, so match your spawn accordingly.
Scaling up from a single fruiting block
If you have succeeded with a spray-and-grow kit and want more mushrooms per grow, the Boomr Bin is the logical next step. You will need to source grain spawn or a colonized bag separately, learn to mix and layer substrate cleanly, and manage a larger fruiting environment. The reward is multiple pounds of mushrooms per cycle instead of ounces.
8. North Spore MushBucket Blue Oyster Kit – Best Bucket-Style Outdoor Grow
North Spore MushBucket Blue Oyster Mushroom Bucket Grow Kit, 3lbs Spawn Bag
Pre-drilled food-grade bucket
3 lb organic blue oyster grain spawn
Pesticide-free chopped straw
Pins in 7-10 days
Burlap sack and bungee cord included
Pros
- Beginner friendly bucket kit
- Fully colonized organic grain spawn
- Pins in 7-10 days
- Pre-drilled food-grade bucket
- High yields of gourmet mushrooms
Cons
- Only 3 customer reviews so far
- Requires a stock pot for pasteurization not included
The MushBucket is the closest thing in this roundup to how North Spore itself started growing mushrooms. You get a pre-drilled food-grade bucket, a 3 pound bag of fully colonized organic blue oyster grain spawn, pesticide-free chopped straw, a burlap sack, and a bungee cord. It is a complete bucket-grow system.
The process is satisfyingly physical. You pasteurize the straw, layer it with the grain spawn in the bucket, and let the mycelium colonize. Pins appear in 7 to 10 days from inoculation. Because the bucket is pre-drilled, you do not need to cut holes or modify anything.
This kit bridges the gap between a countertop block and a full monotub setup. It teaches you the layering and colonization concepts without requiring a sterile lab technique. It is also a great option for garage or sheltered outdoor growing because the bucket contains the mess.
The caveat is that this is a very new product with only 3 reviews so far, all five stars. The early feedback highlights clear instructions and great-tasting mushrooms, but the small sample size means less long-term data than the other kits here.
What you need that is not in the box
You will need a stock pot large enough to pasteurize the straw, which is not included. A thermometer helps you hold the water at the right temperature. Other than that, everything required for the grow ships in the kit.
Indoor versus outdoor bucket growing
The MushBucket works indoors in a clean spot with stable temperatures, but it also adapts well to sheltered outdoor areas like a garage, shed, or shaded balcony. Outdoor grows benefit from natural humidity and airflow, but watch for pests and temperature swings that can stall fruiting.
How to Choose the Right Mushroom Growing Kit?
Picking from the best mushroom growing kits comes down to four questions: your experience level, the species you want, how much yield you need, and whether you want a one-time grow or a reusable system. Let me break each one down.
Match the kit type to your experience level
True beginners should start with a spray-and-grow fruiting block like the North Spore Lion’s Mane or the BloomBox kits. These arrive fully colonized and need only misting. You cannot mess up colonization because it is already done.
Intermediate growers ready to handle sterile technique should look at the ShroomTek all-in-one bag. You inject spores yourself and manage colonization, which teaches you the core mycology skills. Pair it with the Boomer Shroomer monotub for fruiting.
Advanced hobbyists scaling up for bigger yields should consider the Boomr Bin or the MushBucket. These involve bulk substrate, layering, and larger fruiting environments, but they produce pounds instead of ounces.
Choose the right species for your goals
Oyster mushrooms, whether blue, pink, or pearl, are the easiest and fastest for beginners. They colonize aggressively, fruit in about a week, and tolerate a wide range of conditions. Choose a kit like the BloomBox Blue Oyster or the MushBucket if speed and reliability matter most.
Lion’s mane is the best choice if you want a medicinal and culinary mushroom with a unique seafood-like flavor. It is slightly slower than oysters but very forgiving on fresh air exchange. The North Spore and BloomBox lion’s mane kits are both excellent.
Dung-loving species require bulk substrate and a monotub setup. The Boomr Bin and ShroomTek bag are designed for these. They reward experienced growers with large yields but demand more attention to contamination control.
Automated versus traditional kits
Traditional spray-and-grow kits cost less and work well if you can mist twice a day. They are single-use, so you buy a new block for each grow cycle. The Shroomagic Smart Box costs more upfront but automates humidity, light, and airflow, and it is reusable across unlimited grows.
The break-even math favors automation if you plan to grow more than about six times. For a one-time project or a gift, a traditional kit is the better spend.
Contamination prevention basics
Contamination is the top reason grows fail, according to forum discussions on Reddit’s mycology communities. Keep your growing area clean, wash your hands before handling any kit, and never open a colonizing bag or monotub more than necessary. Use 70% isopropyl alcohol on surfaces and tools.
If you see green, black, or slimy patches on your substrate, that is mold and the grow is likely lost. The good news is that pre-colonized spray-and-grow kits almost never contaminate because the mycelium is already established and competitive.
Frequently Asked Questions
Are mushroom grow kits worth buying?
Yes, mushroom grow kits are worth it for beginners, families, and anyone curious about home cultivation. They cost less than buying equivalent gourmet mushrooms at retail, deliver noticeably fresher flavor, and teach the growing process without requiring lab equipment. Most users on gardening and mycology forums describe them as fun science experiments rather than money-saving tools.
What is the best mushroom to grow at home?
Oyster mushrooms (blue, pink, or pearl) are the best species for home growing because they colonize fast, fruit within about a week, tolerate a wide temperature range, and outcompete many contaminants. Lion’s mane is the best choice if you want a medicinal mushroom with a unique seafood-like flavor and forgiving fresh air requirements.
What is the best mushroom for beginners?
Blue oyster is the easiest mushroom for beginners because it fruits quickly and demands the least environmental control. The BloomBox Blue Oyster kit and the North Spore MushBucket are both strong beginner picks. Lion’s mane through the North Spore Spray u0026amp; Grow kit is the best alternative for beginners who want a medicinal species.
Is it legal to buy mushroom grow kits?
Yes, it is legal to buy and use mushroom growing kits for edible and medicinal species like oyster, lion’s mane, and shiitake in the United States and most countries. The kits in this guide contain only gourmet and functional mushrooms. Always check your local regulations if you are unsure about a specific species.
How long does a mushroom grow kit take to produce?
Pre-colonized spray-and-grow kits typically fruit in 7 to 21 days after you start misting. Kits that start from spores, like the ShroomTek all-in-one bag, take 30 to 60 days from inoculation to first flush because you are managing the colonization phase yourself.
Final Thoughts
The best mushroom growing kits in 2026 cover a wide range of grower needs. For most people starting out, the North Spore Organic Lion’s Mane Spray & Grow Kit is the safest pick thanks to its organic certification, proven yields, and strong track record across nearly 1,800 reviews.
If you want a guarantee and faster fruiting, the BloomBox Lion’s Mane kit is the best value play. For hands-off growing, the Shroomagic Smart Box handles the daily work automatically. And when you are ready to scale up, the Boomr Bin and Boomer Shroomer give you a reusable system that produces serious harvests cycle after cycle.
Pick the kit that matches your experience level and species preference, keep your growing area clean, and mist consistently. Your first harvest is closer than you think.