9 Best Small Greenhouses (Comparison & Reviews)

Cultivation of plants is a troublesome and rather time-consuming process. It is very important to provide them with the right microclimate, the necessary conditions for growth and development. At the same time, everyone wants the plants to develop as quickly as possible, and wind and cold did not threaten them.

Such tools provide the plants with warmth by covering them from all sides of the wind and draught and installed in a well-lit place. Warm air accumulated under the film is not carried away by air currents in an unknown direction. Also, you can use a portable heater in case you need more warmth. If you like to grow plants, you will definitely like one of the models in this review of the best small greenhouses.

This item has the best price and quality:

Our Top Pick
Home-Complete HC-4202

Home-Complete HC-4202

This versatile gardening rack is ideal for both indoor and outdoor use. The 8 sturdy shelves provide plenty of room for plants and gardening supplies.

See Best Price

The list of the other greatest small greenhouses with a comparison of the main characteristics:

ItemDimensionsWeightMaterialsShelves
Home-Complete HC-4202

Home-Complete HC-4202

56.3 x 56.3 x 76.7 inches25.1 poundssteel frame, PVC cover4See Best Price
MTB Outdoor Portable Greenhouse

MTB Outdoor Portable Greenhouse

35 x 13.75 x 9 inches38.8 poundsheavy-duty powder coated metal, PE cover4See Best Price
Homewell Walk-in Greenhouse 3 Tiers 6 Shelves

Homewell Walk-in Greenhouse 3 Tiers 6 Shelves

38.5 x 14.5 x 3.5 inches13.94 poundsheavy-duty powder coated steel, PE plastic cover6See Best Price
Seven colors house Reinforced Portable Mini Greenhouse

Seven colors house Reinforced Portable Mini Greenhouse

35.5 x 31.5 x 39 inches10 poundssturdy powder-coated steel frame, UV resistant PVC cover

-

See Best Price
Pure Garden 3-Tier Greenhouse

Pure Garden 3-Tier Greenhouse

27.5 x 19 x 50 inches8.65 poundsdurable iron tubing, PVC cover3See Best Price
Home-Complete Mini Greenhouse

Home-Complete Mini Greenhouse

19 x 28 x 4 inches11.43 poundstubular steel frame and shelves, PVC cover4See Best Price
Gardman USA 7610 Mini 4 Tier Greenhouse

Gardman USA 7610 Mini 4 Tier Greenhouse

18 x 5 x 27 inches11.8 poundsmetal tubular frame, polyethylene cover4See Best Price
Bloom 63537 Large Walk-in Greenhouse

Bloom 63537 Large Walk-in Greenhouse

57 x 57 x 77 inches22.6 poundsheavy-duty powder coated metal, PE cover4See Best Price
BIGTREE Portable 4 Shelves Greenhouse

BIGTREE Portable 4 Shelves Greenhouse

37.4 x 13.8 x 4.7 inches17.51 poundshigh quality tubular steel with powder coating, PE cover4See Best Price

You may also like: Best Portable Fire Pits for Your Garden

Home-Complete HC-4202

Home-Complete HC-4202This model has been on the market for almost two years. Immediately after its appearance, it gained popularity among gardeners. The structure is of a profile pipe.

The width of the greenhouse is quite enough for growing plants. Designed for small areas. If necessary, you can buy extra sections and increase it. There is an arched form of construction.

On sale, there are also extra strengthening kits. They increase the strength of the structure.

You can install this model on the ground itself, as well as on a wooden or concrete foundation. Soil before installation should be leveled.

The hothouse has won a special place among buyers for its high strength. The roof here can withstand a large amount of rainfall.

The basis of the frame – metal with galvanized, the thickness of the wall profile – 1 mm. This allows you to maintain a balance of strength and weight of the structure. There are doors at each end. To get into the greenhouse, you do not need to go around it.

See Best Price

MTB Outdoor Portable Greenhouse

MTB Outdoor Portable GreenhouseThis model is for use in spring and summer. It has excellent quality and some advantages compared to similar structures. The greenhouse is rigid and reliable enough.

This is largely due to the availability of extra elements in the kit. They will strengthen the frame. There are Shelter Lock stabilizers as well as Cross Rail cross-type laths.

The tent is additionally stretched with the Ratchet mechanism. It will be perfectly resistant to strong winds.

The tent itself is of unique ClearView materials. They can withstand tensile loads well and do not deform over the entire life of the tent.

This material passes through enough amount of ultraviolet rays well. Its thermal conductivity is low.

Thus, even at night hours, there will be quite an acceptable temperature. Also, the humidity regime will be at a normal level. This will prevent the overcooling of plants.

See Best Price

You may also like: Best Portable Rocking Chairs

Homewell Walk-in Greenhouse 3 Tiers 6 Shelves

Homewell Walk-in Greenhouse 3 Tiers 6 ShelvesThis model is on the basis of a high-quality metal frame of the galvanized profile pipe. The roof has a sliding mechanism. This allows during daytime hours to open the sun to the plants.

Such a greenhouse does not need a significant amount of free space. The foundation underneath it is not necessary to fill, which makes it transportable.

If necessary, you can fold and remove it for storage.

The greenhouse is quite high, so you can use it not only for growing seedlings. Use it for full-grown plants.

This model has wide functionality and has good parameters. Sheets of polycarbonate are fastened with the help of screeds. They do not damage the integrity of the material.

This greenhouse shows an excellent ratio of budget cost and effective plant growth. This model is functional and has a decent size, spacious capacity.

See Best Price

Seven colors house Reinforced Portable Mini Greenhouse

Seven colors house Reinforced Portable Mini Greenhouse As all the best greenhouses, this design is of high quality galvanized profile. The size of this model is not too big.

Thus, the product can be easily transported in the trunk of a passenger car. The greenhouse is excellent for the year-round cultivation of plants.

On each end, the side has a door and a window for ventilation.

The design is able to withstand significant loads. When you buy extra racks, this design can withstand strong gusts of wind.

This is a building with straight walls and a gable roof. The frame is of galvanized profile pipe, which also greatly facilitates the construction. The sliding roof eliminates the problem of snow load in winter and facilitates ventilation. Besides, there are two doors and two windows.

You can install this model on a foundation of a wooden bar, which simplifies installation. For the manufacture of frame, elements used pipe with the galvanized outer and inner surface. This avoids corrosion when dew falls inside the pipes. The coating uses polycarbonate with protection against ultraviolet.

See Best Price

Pure Garden 3-Tier Greenhouse

Pure Garden 3-Tier GreenhouseThis model is on the basis of a frame of profile pipe, which is a rather powerful construction. Despite the fact that it is not equipped with special metal amplifiers, it is very strong.

It is in disassembled condition. But, you can assemble it quickly and easily. The connections are all smooth, resulting in a flat shape.

All elements are perfectly fastened without the need for extra tools. The model is for both ground and foundation installation.

This type of greenhouse is more focused on professional gardeners. Rather than the average owner.

Despite the large volumes, greenhouses of this type are quite compact and do not look too bulky. Extra tie-ins are in the frame.

They not only give it stiffness. They can also contribute to the installation of ventilation, heating elements, or lighting.

See Best Price

You may also like: Best Portable Duck Blinds

Home-Complete Mini Greenhouse

Home-Complete Mini GreenhouseThis design is on the basis of a metal frame of a round pipe. The internal volume here is quite large. The frame has a coating DuPont.

Besides, the perimeter of the base of this design also has a reinforced frame. This greenhouse comes with one door with a strong and convenient locking mechanism.

This model has a waterproof tent. It protects the structure from the penetration of excessive UV rays. The structure is in such a way that you can turn the tent if necessary, giving access to fresh air.

This is very important in the case of the cultivation of planting material. Fresh air allows you to temper the seedlings well, make them resistant to cold and disease.

This greenhouse can be harvested in record time. The whole process will take about an hour of your time.

The frame is of a profile pipe with increased thickness. This allowed reducing the size and increasing the reliability of the greenhouse.

Classic design allows you to maximize the use of the entire greenhouse space. It is possible to place extra hanging structures in the upper part of the arch.

A coating is of modern polycarbonate. It is distinguished by high thermal conductive and insulating qualities. Increased size allows you to effectively distribute the space inside. Thus, you can combine the traditional landing using a “pyramid”.

See Best Price

Gardman USA 7610 Mini 4 Tier Greenhouse

Gardman USA 7610 Mini 4 Tier GreenhouseThis is a fairly simple model, made on the basis of a high-quality metal frame of galvanized profile pipe. Even after several seasons, it will not need painting and there will be no traces of corrosion on it.

The frame is a closed circuit, which allows it to withstand a much greater load. When disassembled, the model takes up minimal space. Thus, you can transport it in the car. It can be assembled alone for two or three hours.

Means of galvanized screeds fix the coating to the frame. Place this model on the ground in different ways. For example, dig into a shallow depth, or place on a wooden or concrete foundation.

If necessary, you can buy extra inserts. They will increase the length of the greenhouse.

The framework of metal tubes has an anti-corrosion coating DuPont. They are connected to each other by bolts, which securely fix the structural elements.

The removable tent allows filling the ground with moisture in the autumn-winter period. When folded, it takes little space and is better preserved until the next season.

The three-layer ClearView fabric evenly diffuses light, creating a 3-D shadowless lighting effect. Thanks to its translucent properties, the tent easily transmits sunlight from the outside. It then traps it inside for better plant development.

See Best Price

Bloom 63537 Large Walk-in Greenhouse

Bloom 63537 Large Walk-in GreenhouseThis model has increased strength. It is well suited even for installation in fairly remote areas. The frame is of galvanized profile pipe.

You can use such a greenhouse all year round to grow any plants. The increased strength of this model is achieved by installing extra metal amplifiers.

The design is groundless, it is dug into the ground, but you can also make the foundation yourself.

The optimal structure of the frame allows you to cope with high natural and artificial mechanical loads.

The special coating allows you to achieve the largest capacity for sunlight and to keep heat.

The set includes the necessary fasteners for assembly. There are also extra grunt trailers to ensure a stable position in all situations.

See Best Price

You may also like: Best Portable Water Pumps

BIGTREE Portable 4 Shelves Greenhouse

BIGTREE Portable 4 Shelves GreenhouseLike most of the products presented in our review, this model is on the basis of a metal frame. It is of galvanized metal profile. It is insensitive to the occurrence of corrosive processes.

The design is well thought out, which makes the frame rigid. It does not bend even under heavy loads. Mounting and dismounting are not complicated.

So if necessary you can dismantle the structure and moved it to another location in the area.

If necessary, you can buy extra modules. They will significantly increase the construction area.

Buyers recommend installing this greenhouse on a concrete foundation. This will prevent it from heavy wind loads, including a hurricane.

The frame here is standard. It is of a profile rectangular pipe. The lining passes through enough amount of ultraviolet and keeps warm. It also stabilizes the flow of light, preventing solar radiation from penetrating the plants.

See Best Price

FAQ for small greenhouses buyers:

Where should a small greenhouse be placed?

Rather than putting it in an exposed area of your garden where it could blow over, try and choose a position next to a wall or fence. For extra support, you could position other containers on either side.

Do greenhouses have to be in the sun?

Generally, a greenhouse should get full sun, especially during the winter. Site your greenhouse to avoid shadows from buildings & trees, since many plants do best in full sun. However, in especially sunny climates, high altitude areas, or for shade-loving plants, partial shade can be better.

What can I put in a mini greenhouse?

In Autumn time cuttings from fuchsias and geraniums can be taken to provide plant material for next year. Salad crops such as lettuce can be planted in the mini greenhouse to ensure a steady supply during the winter months. Vegetables such as Spring cabbage can be grown on ready for planting out.

Are plastic greenhouses any good?

Plastic greenhouses are very popular, as they are easy to put up, easy to clean, can be very cost-effective, and come in a good variety of shapes and sizes. However, despite an initial higher cost, wooden greenhouses are well worth considering.

When should I start plants in my greenhouse?

Because of this controlled environment, you can actually start seeds in greenhouses anytime. However, if you are starting plants, which you plan to transplant into gardens outdoors in the spring, then you should start the seeds in greenhouses 6-8 weeks before the last expected frost date for your location.

Should a greenhouse have a floor?

Greenhouse floors need to have excellent drainage. Floors can be made of concrete, stone slabs, brick, sand, or even dirt. Gravel floors provide excellent drainage and can be used in conjunction with a weed barrier to keep weeds from growing up through the rocks.

Leave a Comment