Are you a keen gardener looking to enhance your garden? A greenhouse provides you with a way to boost your cultivation of plants, increasing the yield of your vegetable garden.
The optimized growing conditions inside a greenhouse give your flowers the ideal environment they need during the early stages of growth. As a result, you get bigger blooms and impressive flowers.
Building a greenhouse from scratch requires plenty of hard work and a significant investment of your time. Fortunately, there are garden supply companies that offer greenhouse kits you can put together in a few hours.
Finding the right greenhouse to suit your garden and your climate conditions can be challenging if you don’t know what you’re looking for in a kit. We put together this review of the best home greenhouse kits.
The information in our buyer’s guide helps you to make an informed decision on the right greenhouse for you, along with tips for installation and accessories.
Table of Contents
Our Top Picks
Last update on 2024-02-12 / Affiliate links / Images from Amazon Product Advertising API
- The Best Pick: Palram Nature Harmony Greenhouse
The overall versatility of this greenhouse and the excellent quality of materials make this model our top pick in this review. This greenhouse is ideal for growing small to a medium-size vegetable garden to feed your family, and you’ll have some room left over to start your seasonal flowers as well. - The Runner Up: Polycarbonate Walk-In Garden Greenhouse
This greenhouse comes in as a close second to our top pick. This walk-in polycarbonate greenhouse is another excellent choice, and we recommend it to anyone that’s looking for a classier option. It is excellent value for money, and it’s more than enough room to grow a vegetable garden, and start your flowers. - The Budget Pick: Home Complete Walk-in Green House
For those gardeners on a budget, the Home Complete Greenhouse is all you need to enhance the yield of your vegetables and flowers this growing season. This affordable Walk-in greenhouse is easy to put together, and the materials are affordable, but functional, with excellent service life and warranty.
The Best Greenhouse Kits
Here are our top choices for the best greenhouse kits for your backyard. There’s a size to suit any garden, from small townhouses to the largest yards. Pick a greenhouse that meets your sizing and climate requirements.
Home-Complete Walk-in Greenhouse
If you have a larger yard and want to get a bigger greenhouse, think about purchasing the Home-Complete. This walk-in enclosed greenhouse has plenty of space for your vegetable garden.
The sizeable growing space is ideal for planting a variety of veggies throughout the growing season, and the plastic polyethylene cover features UV treatment and waterproofing.
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- 8-SHELF GREENHOUSE KIT - The 8 greenhouse shelves provide plenty of room for trays, pots, or planters of anything you want to grow. Each shelf comes with zip ties to secure them to the sturdy metal frame, preventing them from tipping over.
- INDOOR OR OUTDOOR - This portable greenhouse is ideal for both indoor and outdoor use in your backyard, courtyard, patio, deck, or in the basem*nt or garage. The clear PVC cover helps protect seedlings from frost or pests for an ideal growing environment.
- EASY ASSEMBLY - With no tools required, the green houses for outside are simple to assemble. Simply follow the included instructions and connect the rods of this outdoor greenhouse and use the included stakes and guy lines for added stability.
- VERSATILE USE - This outdoor or indoor greenhouse is a perfect way to extend your growing season for various herbs, vegetables, and fruit-bearing plants, as well as for showcasing beautiful perennials or holding gardening supplies in the offseason.
- PRODUCT DETAILS - Materials: Steel Frame and PVC Cover. Dimensions: (L) 56.3” x (W) 56.3” x (H) 76.7”. Includes: Stakes, Guy Lines, and Zip Ties. Color: Green with Clear Cover.
$58.25 
Last update on 2024-02-12 / Affiliate links / Images from Amazon Product Advertising API
The sturdy steel frame comes with anchoring pegs to ensure the greenhouse doesn’t move in high wind conditions. The cover fits snugly around the frame, using zippered sides with mosquito netting to keep pests out of your greenhouse and away from your plants.
The greenhouse provides your garden with a diffused light source, allowing your plants to mature and flower away from the prying eyes of pests and local wildlife. This greenhouse is large, and you’ll need to place it out of view from your neighbors, as they make think it looks unsightly.
Pros:
- Practical and simple design.
- Anchoring pegs included.
- Roll-up side windows have mosquito netting to keep out pests.
- UV resistant.
Cons:
- Steel frame may get hot in warm climates.
- Assembly instructions confusing.
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Palram Nature Harmony Greenhouse
This greenhouse wins the top pick in this review. We like the simple construction and the lightweight, powder-coated aluminum frame. The Palram greenhouse features clear polycarbonate panels, with easy sliding fitment. Assembly is fast, but you could probably use the help of someone else when erecting this greenhouse in your yard.
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- TWO PANEL TYPES PROVIDE ULTIMATE BALANCED GROWING CONDITIONS - Virtually unbreakable twin-wall polycarbonate roof panels protect from strong sunlight exposure while crystal-clear polycarbonate wall panels provide over 90% light transmission.
- STURDY THOUGHTFUL CONSTRUCTION WILL LAST A LIFETIME - Panels block harmful UV rays to protect plants from sun overexposure. The sturdy, oxidation resistant powder coated aluminum frame includes a galvanized steel base to add structural stability.
- STEP-BY-STEP DIY INSTRUCTIONS DESIGNED FOR HOMEOWNER INSTALLATION - Easy installation accomplished with sliding panels' assembly system. Galvanized steel base includes designated pre-drilled holes for anchoring (anchors not supplied) for additional stability. Single hinged door can be assembled as either right or left hand door to gardener's preferences.
- THOUGHTFUL FEATURES DESIGNED FOR CONVENIENT AND PRODUCTIVE GROWING SEASON - Magnetic door catch included to keep the greenhouse door open or use the lockable door handle to keep door closed. Built-in gutter system for effective water drainage and collection. Adjustable vent window included for air curculation to balance humidity and temperature.
- MAINTENANCE FREE DESIGN FOR A LIFETIME OF USE - Polycarbonate panes are 100% UV protected to not discolor, fracture or shatter. Parts and service available for year round support.
$614.17
Last update on 2024-02-12 / Affiliate links / Images from Amazon Product Advertising API
This greenhouse has a traditional feel, with ventilation from the louvered roof, and anchoring pegs included to ensure the greenhouse stays put in high winds. The greenhouse measures 6′ x 8′, and it’s tall enough to allow you to walk inside.
The classy design of this greenhouse enhances your yard, and we doubt your neighbors will complain, even if they can see the greenhouse from their yard. The rust-resistant galvanized base provides the structure with excellent support while withstanding exposure to the elements.
Pros:
- Anchoring pegs included.
- Vented panels for temperature control.
- Easy assembly.
Cons:
- Challenging to hang plants in the greenhouse.
- Requires 2-persons for assembly.
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Polycarbonate Walk-In Garden Greenhouse
If you live in a townhouse or a complex with a small garden, then this greenhouse is your best option in this review. This polycarbonate walk-in greenhouse measures 6′ x 6′ x 7′, with a smaller 6′ x 4′ option also available.
You can fit this greenhouse in the corner of your yard, without it taking up too much space, or creating an eyesore in your garden. The UV-resistant paneling attaches to a steel frame, making this greenhouse sturdy and long-lasting, despite its affordable price tag.
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We like the sliding door, and it increases the growing space inside the greenhouse. While this greenhouse is by no means large enough to sustain an entire vegetable garden, it’s a good choice for gardeners that want to start flowers throughout the year and transplant them into the garden.
We recommend the Outsunny as our best value for money choice in this greenhouse kit review.
Pros:
- Galvanized steel base for support.
- Easy entry with space-saving sliding door.
- Includes a rain gutter to collect rainwater for your plants.
Cons:
- Thin panels might crack in hailstorms.
- The 90-day warranty is suspicious.
- Confusing assembly instructions.
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JULY’S SONG Upgraded 6’x8′ Hobby Greenhouse
We like the JULY’S SONG walk-in greenhouse. It’s a classic design, with clear polycarbonate panels that provide an aesthetic to the greenhouse that brings a sense of elegance to your garden. If you have limited space in your yard for a greenhouse, then this model is your best choice. The sturdy frame and clear polycarbonate panels make this an ideal starter greenhouse for flowers.
- 【UPGRADED HEAVY-DUTY ALUMINUM FRAME】JULY'S SONG greenhouse kit is made of thickened aluminum which is rust-resistant and more sturdy to deal with all kinds of weather. We coated a layer of green powder on the surface of aluminum, it not only looks great but also protects the aluminium from weathering.
- 【THICKENED POLYCARBONATE PANEL】We upgrade the polycarbonate greenhouse panels,the virtually unbreakable 4 mm twin-wall polycarbonate, can protect your favorite plants and herbs in the heavy-duty greenhouse for outdoors.You can not only grow vegetables, flowers and other plants, but store all your gardening tools and equipment, accessories, and supplies as well.
- 【Galvanized STEEL BASE INCLUDED】Make sure to connect your green house for outdoors with the steel base and sink posts into soil and then concreted in place once your greenhouse is level and square.The strong and durable structure of the walk-in greenhouse allows the greenhouse to stand the test of time.
- 【MULTI-FUNCTION DESIGN】The greenhouse for outdoor has sliding doors for easy access, roof vent for effortless ventilation, and rain gutters for effective drainage of water and snow.
- 【100% SATISFACTION GUARANTEE】JULY'S SONG provide 12 months' worry-free warranty and friendly customer service. If there is any question please feel free to contact with us, our experienced customer service team will response in 24 hours.
$326.96
Last update on 2024-02-12 / Affiliate links / Images from Amazon Product Advertising API
The JULY’S SONG walk-in greenhouse comes in two size options; 6′ x 8′ or 6′ x 10′, so if you have a larger yard, the bigger model will suit your gardening needs. You also get the option of two types of anchoring systems as well.
The most outstanding feature of the JULY’S SONG walk-in greenhouse is the warranty. The manufacturer guarantees this product against any defects for a lifetime on the frame and 10-years on the panels. The greenhouse also features double sliding doors and roof vents to assist with ventilation.
Pros:
- A variety of anchoring systems.
- Outstanding warranty.
- Extension kits are available.
- All tools for assembly included.
- Excellent customer service.
Cons:
- Platform base not included.
- Expensive
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Erommy Walk-in Greenhouse
This greenhouse suit freestanding homes with medium to large gardens. The Erommy greenhouse utilizes both kinds of panels in its design. The tough, durable and transparent PE plastic cover protects plants while allowing nourishing sunlight to pass through. The indoor greenhouse cover can be easily attached to the frame with the included tethers and single-sided tape.
- 🌸【ROLL UP DOOR】Plant hot house has a large zipped roll up door provides easy access to the inside and can be attached to the top in order to stay open.
- 🌷【STURDY & DURABLE CONSTRUCTION】Greenhouse for outdoor equipped with 2 slant bracing tubes, and middle reinforced tubes for enhanced stability. Solid steel construction with a galvanized finish, which is resistant to rust, chipping, and peeling.
- 🌻【TRANSPARENT PLASTIC COVER】The tough, durable and transparent PE plastic cover of the pop up greenhouse protects plants while allowing nourishing sunlight to pass through. The indoor greenhouse cover can be easily attached to the frame with the included tethers and single-sided tape.
- 🌼【THREE-TIER SHELF】Overall Greenhouse Dimensions: 88"H×77"W. This walk-in greenhouse with 3 tiers of shelves uses plastic PE connectors to connect steel pipes, 3 sides 6 tiers of flower shelves, and the single tier shelf can bear 20 lbs.
- 🌺【EASY TO ASSEMBLE】The portable greenhouse is easy to assemble, and you can quickly assemble it according to the assembly manual.
Last update on 2024-02-12 / Affiliate links / Images from Amazon Product Advertising API
The Greenhouse has a large zipped roll up door provides easy access to the inside and can be attached to the top in order to stay open.It also has a solid steel construction with a galvanized finish, which is resistant to rust, chipping, and peeling.
The portable greenhouse use plastic PE connector, quick installation, 6 mesh racks on three sides, weight capacity 33 lbs.
The Greenhouse for outdoor equipped with 2 slant bracing tubes, and middle reinforced tubes for enhanced stability.
Pros:
- Adjustable roof vent
- Aluminum frame is durable and stable
- Portable
Cons:
- Anchoring kit not included.
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Rion Hobby Gardener Greenhouse
The Hobby Gardener 2 greenhouse,is a larger green house for professional growers or extreme hobbiests.
It’s manufactured with 4 millimeter twin-wall polycarbonate roof panels and 6mm twin-wall side panels, offers superior strength, safety, light diffusion and great heat insulation.
The heavy-duty resin frame is fully UV protected and comes in a lovely green that will blend in beautifully with your outdoor space.
Rion HG7120 Hobby Gardener Greenhouse, 8' x 20', Dark Green
- THOUGHTFUL ENGINEERING THAT OFFERS YEAR ROUND PROTECTION - Virtually unbreakable twin-wall 6mm polycarbonate panels provide over 80% light transmission.
- STURDY THOUGHTFUL CONSTRUCTION WILL LAST A LIFETIME - High impact polycarbonate panels, PVC resin frame, and rubber sealing stops work together to create ideal growing conditions.
- STEP-BY-STEP DIY INSTRUCTIONS DESIGNED FOR HOMEOWNER INSTALLATION - Easy installation using a pin and lock connector assembly system.
- PURPOSEFUL FEATURES DESIGNED FOR CONVENIENT AND PRODUCTIVE GROWING SEASON -Barn style design creates amble headroom for a more comfortable space to work, and room for tall plants to thrive.
- MAINTENANCE FREE DESIGN FOR A LIFETIME OF USE - Polycarbonate panes are 100% UV protected to not discolor, fracture or shatter. Parts and service available for year round support.
$4,699.30
Last update on 2024-02-12 / Affiliate links / Images from Amazon Product Advertising API
This greenhouse is 8 feet wide and is available in several lengths to fit your space and your needs. Can be easily assembled with the smart ‘Pin & Lock’ connector method, which adds strength and makes assembly simple.
You will need to Secure to concrete pad or heavy timber foundation. Optional base kit may be added for additional height and extra stability.
Pros:
- Virtually unbreakable 4 mm thick twin-wall polycarbonate panels
- Heavy-Duty resin frame
- Hinged French doors
- Roof Vents
Cons:
- Expensive Option
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Tierra Garden 50-2500 Haxnicks Garden Sunbubble Greenhouse
The Curved shape of the Sunbubble means the surface stays at 90 degrees to the direction of the sun all day long achieving minimum reflection and maximum penetration of light to help your plants grow faster.
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Tierra Garden 50-2500 Haxnicks Garden Sunbubble Greenhouse, Standard
- INSTANT GREENHOUSE – Our Haxnicks Garden Sunbubble Greenhouse is an exciting, dome-shaped, instant plant house/conservatory. The Haxnicks Sunbubble Greenhouse is easy to set up, easy to move and easy to store. Our unique, patented one-piece folding design means you can have a beautiful, quality greenhouse in your garden in just minutes.
- ADJUSTABLE – The Sunbubble is built to work for you. Featuring adjustable vents that let you adjust the temperature to optimal growing conditions and a strong, zipped doorway to keep nosy pets at bay, you can personalize your Sunbubble Greenhouse to meet your needs. When you're taking a break, pack the greenhouse away in the sturdy storage bag for safekeeping.
- INNOVATIVE DESIGN – The innovative dome shape provides ample room for plants and greenhouse staging. Made from UV stabilized PVC and flexible fiberglass rods, Sunbubble is both sturdy and adaptable to your gardening and outdoor needs.
- MAXIMUM SUNLIGHT –Sunbubble Greenhouse makes it easier than ever to keep your plants happily outdoors in the sun! The curved shape of the Sunbubble makes it warm up quicker than a traditional greenhouse. Because of the curve, the surface stays at 90 Degrees to the direction of the sun all day long, achieving minimum reflection and maximum penetration of light,
- PERFECT FOR – Sunny breakfast or candlelit dinner. Outdoor playroom or Sunday snooze. You can use your Sunbubble for much more than gardening! When it is too chilly to relax outside, Sunbubble is the perfect warm shelter for you to relax in.
$230.77
Last update on 2024-02-12 / Affiliate links / Images from Amazon Product Advertising API
It Features adjustable vents and a strong, zipped doorway. Innovative dome shape provides ample room for plants and greenhouse staging. Instant Greenhouse – easy set-up, easy to move and easy to store; Unique one-piece, folding patented design
This is also versatile – use it as greenhouse, for parties, dining, camping, or even an outdoor playhouse.
Pros:
- Dome Shaped
- Adjustable Vents
- Fast, Easy Setup
Cons:
- Pricey
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Greenhouse Buyers Guide
Now that you have an idea of the best options available for your new greenhouse let’s look at choosing the right choice to meet your gardening needs.
This buying guide gives you everything you need to know to make an informed decision on the right greenhouse for your garden.
Deciding on the Right Greenhouse for Your Needs
There are hundreds of greenhouse kits available from online retailers. Finding the right kit to suit your application is critical if you want the best results. You need to understand your gardening needs before you commit to checking out with your new kit.
Before you finalize your choice, ask yourself what you would grow in the greenhouse. Will you be using to grow vegetables throughout the season? Maybe you’re looking for a greenhouse to grow hanging plants or specialized crops like orchids and roses.
Knowing what you want to grow will help you in selecting the right size kit, and the proper construction materials to suit your climate conditions. Take note of the characteristics of each greenhouse, and look at how they could benefit your gardening needs.
Always remember to consider value over price. While there are plenty of affordable greenhouse kits, many of them feature construction with sub-standard materials. As a result, your greenhouse has a much shorter lifespan, and you’ll probably need to replace the cover of panels after a few seasons.
The Types of Greenhouses
When choosing your greenhouse, you’ll have to consider your needs. If you’re intending to grow vegetables all-season long, and utilize the full growing season, then you might need a larger greenhouse than someone who only needs it to start their flowers off before planting them in the garden.
Tips for Sizing Your Greenhouse
The size of your yard is the most significant factor in selecting the right size greenhouse kit. Placing a large greenhouse in a small yard looks unsightly, and your neighbors might complain if it ruins the visual component of their yard as well.
If you have a small yard, then a 4′ x 4′ walk-in greenhouse is all you need to grow a small vegetable crop or start your flowers off early for the growing season.
Panel or Cover Types for Your Greenhouse
After finding the right size greenhouse for your yard, the next step is deciding on the materials for the paneling and cover. There’s a significant difference between choosing opaque or clear panels for your greenhouse.
If you’re purchasing a greenhouse to start your seedlings, then you’ll need a clear polycarbonate panel. Clear panels create a direct lighting environment, providing your seedlings with the ideal sprouting conditions.
If you plan on growing plants to maturity in your greenhouse, then you’ll do better with an opaque panel that diffuses the light and promotes flowering conditions in the greenhouse. If you’re growing from seed to harvest in the greenhouse, then we recommend that you look at purchasing a kit with a twin-wall polycarbonate system.
Climate Considerations for Your Greenhouse
After deciding on the right panels and cover for your greenhouse, the next consideration you need to take into account is your local climate. The environmental conditions play a significant role in your choice of greenhouse kit.
If you live in a region of the United States where you get heavy snowfalls during the wintertime, then you’ll need a greenhouse that offers excellent insulation properties to keep your plants warm. If you live in an area of the U.S that experiences mild winters, such as the southern states, then you can get away with a thinner cover and less insulation.
Those gardeners living in hot climates should ensure that the greenhouse has adequate ventilation to allow warm air to escape and avoid burning the crop.
Choosing a Site for Your Greenhouse
By now, you have a clear idea of the right greenhouse to meet your gardening needs. The final step of purchasing your greenhouse is correctly siting it in your yard for optimal plant production. Some of the critical questions you need to consider when siting your greenhouse include;
- Does the greenhouse allow me to enjoy the use of my yard, or is crowding the space?
- Does the greenhouse affect my neighbor’s field of vision?
- Is the greenhouse ruining the aesthetic of my garden?
- How do the zoning limitations in my city affect my greenhouse site?
- Do I need to apply for a permit before erecting my greenhouse?
These questions should give you a better idea of the right place for your greenhouse in your yard. If you are putting up a larger greenhouse, use some yellow tape to mock up the structure in your yard. After mocking it up, go through your checklist to ensure that it’s not detracting from the visual aesthetic of your yard.
Always check with your local municipality concerning bylaws for erecting greenhouses on residential properties. Some larger structures may violate ordinances.
Greenhouse Accessories
Greenhouse kits typical come with the cover, panels, frame, and stakes. However, there are numerous accessories you can add to your greenhouse to enhance production and control the climate. Here are our top choices for greenhouse equipment you should consider with your purchase.
- Heating systems – If you live in the northern region of the United States, then you’ll probably need a heater if you want to grow through the wintertime and early spring. Plants need heat to grow, and cold winter temperatures will cause them to die if they do not have any protection against the elements. Greenhouse heaters ensure that the cli9mate inside your greenhouse remains stable, even when it’s freezing outside.
- Pathogen and pest control – If you live in an area of the country that experiences heavy rainfall and warm weather, then your garden is at risk of developing pathogens like mold and mildew. Adding a sulfur burner into your greenhouse ensures that your plants remain mold-free.
- Lighting – If you’re growing in a greenhouse in the northern states, then you’ll need artificial light as the winter starts.
- Air management – For those gardeners living in warmer climates, installing a greenhouse fan is a good idea. The fan keeps air moving, reducing the temperature inside your greenhouse during the summer months.
Conclusion
It’s challenging to pick one overall winner in this review. Every gardener’s needs are different in terms of crops they grow and the space they have available in their yard.
However, if you’re looking for a good greenhouse that’s suitable for a freestanding home, then we think that the Palram Nature Harmony Greenhouse is your best option.
This greenhouse is the ideal kit for newbies to greenhouse gardening, and it fits in most yards with its 6′ x 8′ footprint. The price point for the kit is affordable, and it comes with a 5-year warranty, as well as all of the accessories you need to get growing in your new greenhouse.
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