Are you looking for a simple and affordable greenhouse option that will allow you to extend your growing season without requiring extra space? The Erommy Small Portable Greenhouse is a great choice for small budgets and small yards.
This row-cover style greenhouse sits directly over an existing garden bed to help protect seedlings early in the year, protect plants during damaging weather, and extend the growing season later into the fall.
The frame is made of powdered coated steel with plastic joints. The lowest rail is meant to be partially buried in the soil to help stabilize the structure and reduce heat loss. Thanks to the protective coating, these poles won't rust and are resistant to damage.
The simple structure is covered with reinforced PVC panels. This plastic material is stronger than standard PE but not as transparent.
Note: While the panels don't let as much light in as other options, they are less likely to tear in damaging weather and make a great option for shading young plants.
To help increase sunlight, these panels can be opened and rolled up on one side. In addition to allowing more natural light in, this feature also increases ventilation. When it's time to tuck your plants in before a cool night, simply unroll the panels and secure them using the velcro along the bottom.
This long row-cover style greenhouse is about 8 feet long and 2 ½ feet wide. It weighs just 9 pounds and is simple to assemble. Once put together it is easy to move into place with two people.
If you are looking to add a greenhouse space to your deck or patio, the OGrow Walk In Portable Greenhouse is your best option.
Thanks to an upright design, this greenhouse has a small footprint but plenty of space to put potted plants. Each side features three wide shelves with enough space between them for you to work inside of the greenhouse. It is an impressive 6 ½ feet high and only 4 ½ feet long by 2 ½ feet deep.
The frame is made of powder-coated steel with easy-fit plastic connectors to hold everything together. The cover is made of clear plastic for an unobstructed view of the greenery inside.
Note: While we do love the look this plastic paneling gives the greenhouse, it is important to note that it doesn't provide a lot of UV protection.
Plants inside the greenhouse are likely to get a lot of light and a lot of heat in the summer. Depending on what you're trying to grow, this unit would be best placed against an east-facing wall to reduce direct midday sunlight.
For winter use in mild climates, the clear nature of the cover would be a definite benefit, allowing plenty of warmth and light to grow cold-tolerant plants. For moderate to severe winters, especially those that see a lot of snow, this greenhouse is not a suitable choice. To help it last, be sure to pack it away for the winter months.
This greenhouse does include two small roll-up vent windows to increase air circulation as needed. The large door panel along the front also rolls up for full ventilation on warm days. This door features zippers on each side to secure the door in place when not in use.
While this may not be the best small greenhouse choice for all situations, it is a great option if you need an affordable, spacious greenhouse for use close to the house.
The OGrow is easy to assemble but has many parts so be prepared to spend about an hour with it. It comes with a 6-month warranty on the frame and a 90 warranty on the cover.
If you have a larger space but are still in need of a portable-style greenhouse, this Hexagonal Greenhouse by Erommy is a great choice.
This greenhouse is on the larger end for what is still considered a small unit. At nearly 6 ½ feet in diameter, it has plenty of floor space for planting directly in the ground or for setting pots. And each one of the six walls includes two shelves for additional growing space.
The frame is made of galvanized steel with plastic connection points. Once anchored, it is strong enough to stand up to wind and weather. The panel material consists of 2-layer PE mesh plastic which provides added UV protection and helps diffuse incoming light to prevent plant burn.
Note: One thing this greenhouse lacks is ventilation. The large door panel can be unzipped and rolled up to allow some air in. But without other ventilation points, airflow through the inside is reduced.
Luckily, the opaque nature of the cover does reduce overheating problems well enough that this isn't an issue for most climates.
This greenhouse is sturdy enough to withstand light snow and could be used as a winter greenhouse in moderate climates. But to extend the life of the cover, we recommend packing it up for the coldest months.
Due to its size, this greenhouse does require some time to assemble, but it is no more difficult than the other portable options we have listed here. It is quite wide and tall, however, so it will take at least two people to move into position once completed.
Considering all the room inside this greenhouse and extra features like shelving and a wide zippered door, it is priced incredibly well and a great option for those in need of a greenhouse with a little more space.
Are you pressed for space or looking for a greenhouse that will help keep the critters out of your crop? The Canopia Plant Inn Mini Greenhouse is the perfect solution to both situations.
This intelligently designed little greenhouse looks like an enclosed raised bed. The extra height off the ground helps keep animals out of your garden while making it easier for you to reach your crops without having to kneel or bend. Plus, the space under the garden bed doubles as storage for your garden gear-perfect for those that are super-short on space.
The upper garden is enclosed within polycarbonate panels that protect the plants from the elements while holding heat and humidity in. While lightweight, these panels are incredibly durable and able to stand up to the elements very well.
Note: This greenhouse would make a great choice for those hoping to plant a winter garden. It provides enough protection to allow for cool-season crop cultivation in moderate winter climates.
The angled roof opens on both sides, allowing unrestricted access to the entire bed. These panels can be fully opened on hot days for full airflow, or propped open for simple ventilation.
The Canopia Plant Inn requires quite a bit of assembly. Expect to dedicate about 5 hours to put it together and plan on having two people to do so. Once constructed it is light enough to move around before the dirt is added to the internal bins.
This greenhouse stands at just under 5 feet tall and is about 4 feet wide. A durable aluminum frame supports the lower plastic storage panels and upper polycarbonate greenhouse panels. All parts carry an impressive 5-year warranty.
Are you looking for a true greenhouse kit that's small enough to fit in an undersized yard? The Walk-In Greenhouse With Sliding Door is the perfect compromise between size and function.
This quality greenhouse looks like your premiere walk-in garden greenhouses but only has a footprint of 4 feet by 6 feet.
The structure is made of high-quality aluminum alloy and the panels are made of highly durable polycarbonate. These panels provide UV protection while letting in diffused light for maximum growth without burning.
The front of the house features a sliding door for easy access without requiring extra space. There is a single window vent on the roof to help keep temperatures down during sunny days. And the frame is built to support additions like shelving, drip systems, and other greenhouse must-haves.
Note: If you are hoping to use your greenhouse year-round, this option has you covered. The frame and panels are strong enough to stand up to snow while the included galvanized base sinks into the ground to stabilize the house and protect against blow over.
This greenhouse will take some time to put together and requires at least two sets of hands. You will also want to assemble it in place as moving the structure is quite difficult. It can be placed directly on the ground for inground planting or on a foundation for use with potted plants.
Small greenhouses make a great place to start seedlings and spoil houseplants in need of a bit more sun. The Gardman 4-Tier Mini Greenhouse is perfect if these are your main reasons for getting a greenhouse.
This tall shelf-style greenhouse has a tiny footprint-only 27 inches by 18 inches. That's not a ton of space unless you multiply it by four, which you can do thanks to the built-in, 63-inch high shelving unit.
All of those alloy steel shelves are encased in a clear PE plastic cover. This cover helps protect your plants from the elements while keeping heat and humidity in during cool nights. This provides the perfect environment for sprouting seeds and caring for tropical plants.
Best of all, when the temperatures finally heat up, you can remove the cover completely and use the product as a simple decorative shelf for holding your plants and garden supplies.
When the greenhouse cover is in place, the front panel unzips along each side to allow access to the plants on the shelves. It can even be rolled up and secured in place to provide ventilation as needed.
Note: Don't expect these shelves to be able to hold a ton of weight, but they work well enough for seedling trays, plastic pots, or a handful of ceramic pots. If you plan to position the unit where it will get some wind, make sure to anchor it to a deck rail or the wall.
This tiny greenhouse is super simple to assemble and provides the perfect place to house plants through mild winters or to help extend your growing season.
Looking for a durable, insulated greenhouse that you can use all winter long without fear of it crumbling under the snow or blowing away? The Little Cottage Company Petite Greenhouse is as sturdy a little greenhouse as you'll ever find.
This unit is half shed, half greenhouse, and all function. Three of the four wood walls feature tall windows to let in light, while the roof is made of corrugated polycarbonate to create an even brighter environment.
Each of the five windows opens to allow for maximum ventilation. They also include screens to help keep pests away from your plants. Opposite the windows, on the long wall of the 5-foot-wide, 2-½-foot deep structure are two double shed doors that allow easy access to the inside.
Note: This greenhouse is only 4 feet high at the tall end. It isn't exactly a walk-in type but rather meant to be used more as a shelf-style greenhouse that is worked on from outside the doors.
There is a long shelf built into the far wall as well as plenty of space on the floor for setting additional potted plants.
The entire structure is raised off the ground to reduce rodent activity and stabilize the structure without the need for a foundation. Thanks to the wood walls, it provides far more protection and temperature stabilization for winter gardening than your typical greenhouse. But you will likely still need supplemental heat in cold climates if you plan to grow anything beyond cool-season crops.
The Little Cottage comes with prefabricated sections that require assembly. Expect to spend a day putting it together with the help of a friend, or better yet, hire a professional carpenter to do it for you. It comes unfinished and will need to be painted and maintained for maximum weather protection.
