You’re finally ready to purchase a greenhouse kit and get started on greenhouse gardening!
With so many on the market, which is the best? What will work with your space and logistically make sense for your needs? If these are some of your questions, you’ve come to the right place!
Keep reading for our top picks and a complete buyer’s guide to buying the best greenhouse kit!
Our Top Picks:
Best Overall:
Veikous Walk-In Greenhouse Kit with Roof Vent
All Year Function and Beauty:
Veikous Walk-In Greenhouse Kit with Roof Vent and Double Door
For the Experienced Grower:
ShelterLogic GrowIT Heavy Duty Round Greenhouse
Best Budget and Small Gardens:
ABCCANOPY Lean-To Walk-In Greenhouse
Best for Seed Starts and Large Gardens:
ShelterLogic Organic Growers Greenhouse
Best Overall
Veikous 6 Ft. by 8 Ft. Walk-In Greenhouse Kit with Roof Vent
When thinking of the best greenhouse kit, this should be the picture that comes to mind. Veikous makes this study greenhouse that’s perfect for all your gardening needs while adding a bit of flair to your backyard or garden space.
This walk-in greenhouse provides rust-resistant frame construction and wind-resistant polycarbonate boards making this our best overall for any gardener. By following these easy assembly directions, you’ll build the greenhouse of your dreams that is study enough to handle most weather conditions.
The polycarbonate boards offer a UV-resistant coating which prevents the sun from burning your plants, saving you tons of time in re-potting or planting. Not only does the walls prevent sun damage but so does the textured roof. The roof also consists of a large, ventable window, so you’ll be able to better control airflow and temperature.
If you are looking for the best design and function, you’ll need to check out this greenhouse.
Pros
- Ventable roof for better airflow and temperature control.
- Strong alloy construction with polycarbonate walls.
- UV resistance.
- Weather resistant.
- Sleek and modern design.
Cons
- Only one ventable window.
- No screens to offer more airflow.
- No shelving provided.
All Year Function and Beauty
Veikous Walk-In Greenhouse Kit with Roof Vent and Double Door
Serious gardeners rejoice! This top-of-the-line greenhouse kit is perfect for the gardener looking to plant all their seed starters and continue gardening once father winter strikes.
This large greenhouse (8′ x 16′) can hold many plants and gardening tools and is large enough for fruits, vegetables, and house plants.
You won’t have to worry about rust or weathering with a powder-coated aluminum frame. The thick polycarbonate wall panels are made with a UV diffusion pattern, which helps with light distribution and heat.
If you live in a windy area, this greenhouse can withstand up to 30 MPH gusts. It’s easy to prepare for any weather that comes your way with large lockable doors and an adjustable roof vent.
You’ll have this greenhouse set up quickly if you follow the easy-to-read instructions and its complete accessory kit.
Pros
- Easy-to-follow set-up instructions.
- High tolerance to wind.
- Large lockable doors.
- Uv diffusion pattern on polycarbonate walls and roof.
- Large adjustable roof vent.
- All year gardening.
Cons
- Only one vent for air circulation.
- Needs a large space.
- No added screens for temperature control.
For the Experienced Grower
ShelterLogic GrowIT Heavy Duty Round Greenhouse Kit
This round frame design will look fantastic in any space and has even more room for your gardening needs. This greenhouse measures 12′ x 20′ x 8′ and is large enough for all your seed-starting needs, gardening tools, and beautiful landscaping plants.
Depending on your climate and zone, you could even keep plants alive and thriving over the winter months. Or you can get a jump on seed starting for a large garden. Either way, this greenhouse kit is sure to impress.
With a premium powder-coated 1⅝ inch-round steel frame, this greenhouse holds up to water and wind like a charm. This greenhouse was designed with specialty stabilizers to create a rock-solid foundation. The polyethylene fabric cover protects your plants from harsh UV rays and allows the perfect amount of heat and humidity your plants need.
If you need more airflow or temperature control, roll up the sides to create the ideal atmosphere. The front and rear doors are fully zippered, creating a perfect seal to protect your plants from weather and pests.
Pros
- Powder-coated frame.
- Easily can be taken down and moved or stored.
- Roll-up side panels to completely control airflow and temperature.
- Large space to set up all your planting needs.
Cons
- No screens when the side panels roll up, leaving your plants open to pests.
- Will need a large space to install the greenhouse.
- Zippered doors can lead to early wear and tear.
Best Budget and Small Gardens
ABCCANOPY Lean-To Walk-In Greenhouse
This portable greenhouse is perfect for small-space gardens or a small area for hobby gardening. This 6.5′ x 3′ x 7′ design lets you place this greenhouse on small patios, porches, balconies, or side yards.
Complete with shelving, you’ll be ready to start gardening the second you finish the simple setup of this greenhouse kit.
This is the greenhouse for you if you’re planning for early-season seed starts that you’ll be transplanting into your garden. The thick UV-protectant polyethylene covers the frame for added sun protection, weather, and waterproofing.
Two roll-up windows provide air circulation and allow you to control the inside temperatures. The handy, added shelving will have you gardening in no time.
Pros
- Portable.
- Weatherproof.
- Small-sized for hobby gardening.
- Translucent polyethylene cover.
- Small investment.
- Don’t need a yard to own this greenhouse.
Cons
- Not suitable for high winds or intense cold weather.
- Small sized, so there is a limit on how many plants it can hold.
- Zippered doors and fabric ties can lead to early wear and tear.
Best for Seed Starts and Large Gardens
ShelterLogic Organic Growers Greenhouse
Looking for a simple seed starter greenhouse? This 6′ x 8′ one is sure to have you out gardening before spring hits. With an all-steel frame, you won’t have to worry about flimsy rods that can barely hold up the cover.
Screened bottoms allow the best airflow while keeping some pesky critters at bay. But you won’t need to worry since everything can be zipped up and fully secured in minutes.
With a 1⅜ inch steel frame and premium powder coating, this provides a sturdy and weather-resistant frame to last more than one season. The roll-up side panels snap into place and provide full-length screens for the perfect air circulation and temperature control, all while keeping pests at bay.
The laminate light diffusion fabric disperses heat evenly to all your plants while blocking harmful UV rays.
With simple, easy-to-follow instructions, installing this greenhouse kit is simple and takes no time!
Pros
- Sturdy frame provides extra weatherproofing.
- Full-length screens keep pests away from plants while adding better airflow.
- UV-protecting fabric.
- Half-moon windows for even better airflow.
- No tools needed for assembly.
- Portable.
Cons
- Not wind-resistant, would need to provide extra tie downs.
- Zippered and fabric ties can cause early wear and tear.
Buyers Guide to the Best Greenhouse Kits
Now that you know what types of greenhouse styles are on the market, how do you pick the best one for your needs? Here are a few things to consider when purchasing a greenhouse kit.
Sizing
Probably the most important thing you’ll need to figure out is what size greenhouse you need. It may be best to go with a smaller greenhouse and work your way up if you’re a beginner or a novice.
As a beginner, you may need a small space to experiment with growing plants from seed, keeping them in the right environment to thrive, and having a protected area to keep your small amount of supplies.
You’ll need a moderate-sized greenhouse if you’re a more experienced gardener and want multiple shelves for your seed starts and more space to work.
Consider how many plants you’ll have the time and energy to care for. Overwhelming yourself with a large greenhouse and too many plants can take a toll on the plants and you!
If you plan to grow fruits and vegetables year round and maybe even grow to sell at a local farmers market, you’ll want to invest in a larger, more study-type greenhouse than a novice.
It boils down to knowing what you’re willing to work with and care for and the space available in your garden or yard.
Insulation and Designs. Winter Appropriate?
Another consideration is insulation and if the design of a greenhouse kit will work for your climate or growing zone. If you are in a place with gale-force winds, a hollow aluminum frame with polyethylene fabric may not be the best choice.
If you want to start seeds early and have them ready for planting once the last frost date has passed, you may need a framed, sturdy, insulated greenhouse kit. This way, your young plants are protected from winter and early spring weather.
Because greenhouses aren’t complete structures like a home or a garden shed, you’ll want to anchor yours to the ground when windy conditions occur. Look for greenhouse kits with anchoring points and sealable doors, windows, and vents.
Logistics and Landscape
Greenhouse sizing is determined by the size of your yard and any pre-existing structures or landscaping. If you’re unsure about where to place your greenhouse kit, a tip is to lay out some cardboard or tape in different areas and compare sizes.
Make sure a greenhouse doesn’t interfere with other outdoor activities you and your family may enjoy. If you always play lawn games or set up a kiddie pool in a specific area, that’s not where you want to set up a greenhouse kit!
Make sure your greenhouse location has the appropriate amount of sunlight and shade. Otherwise, you may need to move it in the future.
Lastly, even though a greenhouse kit isn’t considered a building, you may need to check with your city or town for zoning regulations and laws. Some cities may have specific requirements for greenhouses. A quick call to your local zoning office will answer all your questions to avoid future trouble.
Greenhouse Kit Frequently Asked Questions
Are greenhouse kits worth it?
Yes! Greenhouse kits allow you to carefully control the conditions your plants grow in. You can garden all year round rather than just in the spring and summer. You can even grow tropicals in zones too cold for growing them outdoors.
Do greenhouses last through the winter?
Depending on your climate and the structure type you choose, you may be able to use a greenhouse during the winter months.
Should a greenhouse be installed in an area with full sun?
When looking for the perfect place to build your greenhouse kit, you’ll want to pick a location that receives at least 8 hours of direct sunlight. This is needed for growing tropical plants and seed starts.
Is it cheaper to build a DIY greenhouse or purchase a kit?
When looking at a standard greenhouse kit with no add-ons or special features, a kit is cheaper than building one from scratch. However, building your own may be cheaper if you need custom sizing and features.
What is the best material for a greenhouse in a harsh winter climate?
The best material for colder-climate greenhouse kits is a galvanized steel frame. Try to steer clear of aluminum since it can’t withstand the snow and cold temperatures of harsh winters.
What time of year is best to install a greenhouse?
The best time to set up your greenhouse kit is either at the beginning of the growing season or the end. Waiting until the end gives you more time to plan your future greenhouse gardening in early spring.
Do I need to purchase a heater for my greenhouse?
If you’re in a climate or growing zone that has harsh temperatures during the winter, early spring, or night you may need a convection space heater in your greenhouse.
Where should I NOT install a greenhouse?
Avoid placing a greenhouse under tall trees that cast too much shade. Greenhouses need a minimum of 6 to 8 hours of direct sunlight per day.
Wrapping Up the Best Greenhouse Kits
With these greenhouse kit picks, you cannot go wrong when deciding which greenhouse to buy. Whether you’re a greenhouse beginner needing something small to get started or a seasoned gardener requiring a large area to do some serious gardening, this list has you covered.
Make sure to do your research and pick the perfect location before buying your new greenhouse kit. That way, all you’ll need to do is install it and get planting!
Check out more of our recommendations for must-have Garden Tools. Whatever you need for this gardening season, you’ll find it here.
Want more garden content? Visit our gardening page for in-depth guides, explainer posts, and great ideas!
- About the Author
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Lauren has three main passions: her family, writing, and gardening! Lauren has spent countless hours in her garden tending to different plants, whether those be beautiful flowers, vegetables, or different perennials.
Rest assured that if it concerns plants and gardens, Lauren has got you covered. So, when needing advice or looking for the best new gardening gadget, you have come to the right place and the right author.