5 Best Small Greenhouse Kits – Buyer’s Guide & Reviews

This 6-foot by 8-foot greenhouse offers 48 square feet of growing space. It features a rust-resistant aluminum frame in a brushed silver finish, along with a galvanized heavy-duty steel base. The polycarbonate panels are doubled up to create twin walls, resulting in a 4mm thickness, which offers supreme durability.

The polycarbonate panels block out over 99% of UV rays but let in 70% of light. This is good for plants that enjoy bright light but are at risk of scorching in too much direct light. The roof is also made from polycarbonate panels and features adjustable vents and rain guttering. The single door can be locked for safety, and the whole structure comes with a 5-year limited manufacturer’s warranty.

Users of this greenhouse found that they were able to build it fairly easily, in spite of the lengthy instructions which were found to be confusing. The instructions contained no words, just pictures, making construction a challenge but not impossible. Most users were able to construct the greenhouse over the course of a few days, with some doing it single-handedly.

Once constructed, the majority of users were very pleased with this greenhouse. It is sturdy and well designed, standing up well against high winds and hail storms. Some users commented that the roof vents were not as useful as expected, but overall, they would still recommend this greenhouse to friends.

Users noted that a level spot to build this on is essential, and you will also need to stake it to the ground. After growing plants and vegetables in this greenhouse, users were extremely happy with the results, noting that their fruit and vegetables had grown rapidly to impressive sizes.

This greenhouse structure measures 6 feet by 8 feet and has a powder-coated steel frame and a polythene cover. The polythene cover is reinforced for added durability and is UV-resistant, allowing light to penetrate through while protecting your plants.

The cover features roll-up windows that are fitted with mosquito nets, so you can adjust the ventilation in your greenhouse without being subjected to pests. The doorway is wide for easy access and has zips along each side so you can easily secure the structure or open them quickly for extra ventilation. The frame is designed to be built by the average gardener and can be constructed without the use of any tools. Large foot plates make for added stability, and these can be fixed to a base or directly to your ground.

Users of this greenhouse love almost every aspect of it. It was found to be easy to construct, though some users did comment on the lack of instructions provided. Once built, users found the greenhouse to be very sturdy and able to withstand a variety of weather. Users particularly like the six windows, which make climate control easy, and the addition of mosquito nets is a useful touch for those living in areas affected by insects.

The main issue users of this greenhouse found were that a part of the cover was melting in the sun. The cause was that the metal frame itself would become very hot in the summer heat, and the part of the polythene roof that was resting on the metal frame would burn to a crisp from the contact heat. Some users resolved this problem by adding protective layers to the frame of the roof, preventing the cover from coming into contact with it. Users who had their greenhouses ruined by this problem found that contacting the manufacturer on their website was very difficult. Contacting them via social media was more successful though, and the customer service they offered was excellent, replacing damaged greenhouses free of charge.

This greenhouse has a footprint of 6 feet x 8 feet, giving you 53 square feet of growing space and 6 feet 8 inches of head height. It features a snap system to allow for easy construction using only a few tools, and the polycarbonate roof and window panels simply slide into place. The polycarbonate panels act similarly to glass, allowing light into the greenhouse and giving 100% UV protection while being both lighter and stronger than glass.

The greenhouse benefits from a galvanized steel base, an aluminum frame, a single door with a lockable handle, built-in guttering, and adjustable roof vents for ventilation. The greenhouse is also backed by a 5-year limited warranty.

Users of this greenhouse love how sturdy it is and attest to how well it fares even in storms and high winds. Some users found that strong winds caused the frame to rattle but no parts to blow or become loose.

The most common problem users found was the construction of the greenhouse. In spite of the alleged easy snap-together construction, most users found that building this greenhouse was a mammoth task. Most users took several days to put this together, and note that you will need at least two people to construct it. Some users paid for professional builders to construct the greenhouse for them, which would be a wise move if you are not experienced in construction. Most users recommend that this greenhouse not be built by amateurs and comment that the instructions, in particular, are very difficult to follow. Once the greenhouse was built, though, they were very happy with it. It is strong, sturdy, and has all the features you would need in a small to medium-sized greenhouse.

This 10-foot by 10-foot greenhouse benefits from a steel frame that has been white powder coated. It comes with a fully enclosable fitted cover made from reinforced clear plastic. The cover is opaque, allowing in a reasonable amount of light while also protecting plants from getting scorched. The cover is water-resistant, fire retardant, and also has UV inhibitors to protect against the sun’s harmful rays. The roll-up door of the greenhouse can be zipped closed along both sides and along the bottom for complete closure against the elements and unwanted pests.

Users of this greenhouse were happy with how easy it was to assemble, with construction time taking just an hour or two for one person. Upon assembly, most users were satisfied with the greenhouse, noting that it was durable and seemed to be made from high-quality materials. However, over time, some users were unimpressed with how the greenhouse fared.

The main complaint among users was that the zipper, which closes the door, ceased to work. In many instances, it broke after a few months of use, making it impossible to enclose the unit fully. Some users also found that the material of the cover shrunk over time. This could have been down to temperature changes or rain, but users noted that the cover became very tight on the frame, and they were no longer able to close it as they were before, as there was a gap of a few inches where the fabric wouldn’t meet.

The other problem users encountered was that the cover was not opaque as described by the manufacturers, and from the outside, you could not see anything that was being housed on the inside of the greenhouse. This may be a bonus if you are wanting to hide what you are growing from neighbors, but it may well mean that your plants are not able to get enough sunlight.

This mini greenhouse is perfect for small spaces such as balconies or terraces, measuring 27 inches long, 18 inches wide, and 63 inches tall. It features four shelves that are ideal for seedlings and young plants to get a head start on the growing season.

The tubular steel frame is powder-coated and benefits from push fittings so that it can be assembled quickly and easily without the need for any tools. The mini greenhouse includes a polyethylene cover, which is completely clear for maximum light exposure. The cover can be zipped shut of rolled up and secured in an open position for easy access, or to protect plants against bugs.

The unit comes with metal stakes and ropes so that the greenhouse can be anchored in place to hold it secure against strong winds. In the event that you do wish to move the greenhouse, it has wheels for easy portability. The clear cover is completely removable, so you can use the greenhouse as an outdoor shelving unit during other seasons if you wish. Replacement covers can also be purchased separately should you need a spare cover.

Users of this mini greenhouse found assembly very easy and were pleased with the finished product. Most users noted that the shelves didn’t feel very secure, so they fitted them in place with the addition of some zip ties. Some users also found that the frame was lightweight and liable to tipping over, so they weighed it down with some bricks on the bottom shelf.

Users were happy with how the mini greenhouse looked, describing it as modern and expensive-looking, so it wasn’t an eyesore on their balcony. Users were also happy that it took up very little space but provided plenty of storage for seedlings and small plants. Some users found that the shelves were warped when they arrived, likely from the delivery process. It may be that this item needs more appropriate packaging to minimize the likelihood of this problem. Some users were disappointed with how lightweight the unit was and found that it easily wobbled or leaned over. However, most users were thoroughly pleased with the mini greenhouse and would recommend it to friends.