A backyard greenhouse kit offers you and your crops a comfortable, stable environment regardless of the time of year, be it winter, autumn or summer.
You can find many types, from the permanent to the fabric-covered ones you can erect and takedown as required.
Each has its advantages and disadvantages, yet they can all offer an excellent place for your crops.
By the time you have been through the reviews of the best greenhouse kits, you’ll see which is right for your garden and which you can use year-round. (Find the Best Garden Storage Shed)
Why You Need the Best Greenhouse Kit
The enhanced environmental conditions in a greenhouse offer your crops and flowers an ideal environment required during the early stages of growth. Or, if you are growing through the year, it can lead to larger yields on your crops or bigger blooms.
To erect a greenhouse, a gardener needs to construct foundations, and then you can build the rest of the structure.
However, you can find companies that offer greenhouse kits, which are easy to assemble. So a gardener can build a DIY greenhouse in the space of a day or less with a couple of people and minimal tools required.
Most plants are vulnerable to bad weather, particularly when planting. Your greenhouse can offer this protection. Also, they can receive protection from UV rays and frosts that hit your garden unexpectedly.
The best greenhouse kits make everything far more straightforward than it used to be. You also have the flexibility to move them as you wish if you move home or change your garden landscape.
You can find all options in our greenhouses reviews, from the plastic cover that is virtually unbreakable to exotic greenhouse structures that can take pride of place in your garden.
Best Greenhouse Kit Reviews
1. Mini Walk-in Greenhouse Indoor Outdoor -2 Tier 8 Shelves- Portable Plant Gardening Greenhouse (57L x 57W x 77H Inches), Grow Plant Herbs Flowers Hot House
You will find this mini walk-in greenhouse performs well outside its simple appearance.
It’s built using a high-quality powder-coated steel frame that is corrosion-resistant. It is very durable and can take knocks from pots and trays. You have space under the shelves and then shelving, offering eight separate areas.
The polyethylene cover is transparent PE and is 100% waterproof and will stop any frost or pests, yet allows nourishing sunlight inside. The cover also offers UV protection to enhance the growing environment.
The mini greenhouse is portable & easy to assemble. It comes at 57 “L x 57 “W x 77 “H and has a no-tool assemble. It also comes with an anchoring system for extra rigidity.
- Can assemble by yourself
- Highly duty, durable yet lightweight
- Very affordable
- Solid shelving
- No ventilation asides from the door
- A taller gardener may need to stoop a little
With a guide price of just over $70, you get a great greenhouse that can blend into any small garden. It is challenging and provides the best environment for all your flowers or vegetables.
2. Palram HG5006G Mythos Hobby Greenhouse, 6’ x 6’ x 7’, Forest Green
If you want a tough polycarbonate greenhouse, the Palram Hobby Greenhouse is just the thing. Its construction is virtually unbreakable 4 mm twin-wall polycarbonate panels.
The side panels and roof can block up to 99.9% of UV rays while diffusing sunlight to stop plant burns.
The rust-resistant aluminum frame delivers 36 square feet of growing space; it comes with an adjustable roof vent, rain gutters to harvest rainwater, and a lockable door. For full support, the base is made from galvanized steel.
- Good sized growing space
- Won’t corrode or rot
- Stops lots of UV light transmission
- Very heavy-duty panels
- Poor assembly instructions
- Reports of poor customer support
With a guide price of just over $750, you get a very durable greenhouse for the money. At the same time, there are reports of a lack of instructions. These are minor faults, as once you have erected, there isn’t much to fault the greenhouse.
3. Palram Four Season Chalet Hobby Greenhouse – 12 x 8 x 9 Charcoal Gray
The Palram four-season is a step up from the Palram Nature Harmony greenhouse if you have the yard size.
You get the 4mm twin-wall polycarbonate panels on the roof and wall panels that will block up to 99.9% of UV rays and offer 90% light transmission. You get a huge 95 sq. feet of growing space and lots of headroom for the taller gardener.
The unique dream shape offers lots of growing space, and you get a reinforced, double wall & rust resistance aluminum frame and gutter system.
- 5-year limited warranty
- Unique design to deliver generous headroom
- Two roof vents for air circulation and lockable doors
- Heavy-duty easy to assemble construction
- May be large for some small yards
With a guide price of just under $2,900, it is expensive, yet Palram is versatile, and many a gardener use it as a chalet and a very spacious growing space.
It is large yet doesn’t look like your standard best greenhouse kits.
4. Palram HG5504G Hybrid Hobby Greenhouse, 6’ x 4’ x 7’, Forest Green
In this model from Palram, you get the Hybrid Hobby, which offers a lightweight, powder-coated aluminum frame. It comes with clear polycarbonate panels that have easy sliding fitment.
The small greenhouse has easy assembly, though you could use a second person.
The garden greenhouse delivers a more traditional feel and offers ventilation using a louvered roof. You also get anchoring pegs to ensure the greenhouse stays in position in high winds. It is 6′ x 8′, and you will find enough head clearance in this size of the greenhouse.
The rust-resistant galvanized steel base provides a solid structure to withstand exposure to the elements.
- Anchoring pegs included
- Vent panels to control temperature and humidity levels
- Easy assembly
- Not suitable to hang plants
- 2-persons assembly for the wall, roof panels
With a guide price of around $550, the greenhouse offers classic looks and great performance. However, you may need to add shading to limit the direct sun light that falls on your plants.
5. Palram Four Season Americana Hobby Greenhouse – 12 x 12 x 9 Silver
If you want a contained growing space you can use all year round, this is it. It is the most extensive home greenhouse kit and is very far from any small greenhouse.
You get the same 4mm twin-wall roof panels like other Palram models and block 99.9% Of UV rays. In addition, the clear, virtually unbreakable polycarbonate panels deliver over 90% light transmission.
You get a whopping 144 square feet of growing space and lots of headroom. In addition, you get an anchoring kit, roof vents, threshold ramp, and the same heavy-duty galvanized steel frame base.
- Massive square footage of gardening area for your plants
- Huge amounts of headroom
- Multiple roof vents
- 5-year limited warranty
- Will require multiple people to assemble
- May need to add shading for your plants
With a guide of just over $3,000, you get masses of a garden greenhouse. You get the same steel cold frame resistant base, durable panels, and high-quality finish yet in a much larger size.
If you are growing vegetables, you have enough space for all your plants, and you never need to garden outside. With the adjustable roof, you get more than enough cover to work in your garden at any time of the year.
Best Greenhouse Kit Buying guide
Now you have seen some of the best options available, here’s what you need to check to make sure you have the right choice to meet your gardening needs.
Types of Greenhouses
You need to know the type you want. For example, if you’re going to grow vegetables all season and extend your growing season, you may need more square feet of growing space than just starting flowers before planting in the backyard.
Size of Greenhouse
Yard size is the most significant factor when buying a greenhouse kit. A large greenhouse in a small yard looks weird, and neighbors may complain should it affect their view.
For small yards, then 4′ x 4′, walk-in greenhouse kits are all you need to grow small vegetable crops or start flowers early in the growing season.
Greenhouse Panels or Covers?
The next thing for greenhouses for homes is deciding on paneling and cover materials, as you will notice a big difference.
If purchasing your greenhouse for starting seedlings, you’ll need clear twin wall polycarbonate panels. Clear panels create direct light transmission, producing the ideal germination environment. However, with some transparent materials, they may not be UV resistant. Such UV rays can be harmful to your plants and also to you.
To mature plants, you can use opaque panels to diffuse light and promote flowering. However, if growing from seed to harvest, you want thick twin-wall polycarbonate side panels.
It would help if you also were sure your greenhouse could withstand the rigors of winter, although this does depend on where you live. Any frames that come with covers should be powder coated to be rust-resistant.
They should also be constructed to allow easy access yet keep out any deer or rabbits.
Some were a little elaborate and not ideal for many urban gardeners when checking these garden greenhouses. However, when you look at the price to performance, it was clear the Mini Walk-in Greenhouse Indoor Outdoor -2 Tier 8 Shelves- Portable Plant Gardening Greenhouse (57L x 57W x 77H Inches), Grow Plant Herbs Flowers Hot House was rising to the top.
It doesn’t look larger models, yet you get shelves you don’t get in more expensive models, and the PE cover performs the same as the polycarbonate panels. So your plants get the best environment possible.
Finally, you can assemble this great little greenhouse by yourself in next to no time. Before you know it, you can protect your plants from any weather.
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