The 10 Best Small Greenhouses Reviewed

You love gardening, but you don’t have the space to grow all of your plants. 

If you’re looking for a way to grow more plants in less space, then greenhouse kits are an excellent option. But there are so many options out there that it can be hard to choose one. That’s why we put together this guide on what you should look for when buying a small greenhouse kit.

There are many different sizes of greenhouses available today and each has its own advantages and disadvantages depending on your needs and preferences. Check out our comprehensive review of the best small greenhouses that will fit any budget or need!

Our Top Picks

For Beginner Gardeners – Home Complete Mini 4 Tier Indoor Outdoor Greenhouse

This 4 tier mini greenhouse from Home Complete is the perfect addition to your garden – providing you with the room to grow more plants in less space! Easy to assemble and use, this mini greenhouse is lightweight enough that it can be moved or stored whenever you need.

The 4 tiers of sturdy shelving are ideal for both indoor and outdoor use and can hold potting soil, planters, trays, seedlings, or anything else you want to grow. The clear PVC cover protects seedlings from frost or pests and creates a more ideal growing environment.

This easy to assemble greenhouse can hold up to 24 pounds and is easy to move around your porch, patio, deck, or sunroom. The fully locking wheels are included and it doesn’t require any tools to assemble.

For Serious Gardeners – Palram Hybrid Hobby Greenhouse

This polycarbonate greenhouse from Palram is the perfect unit for serious gardeners who want to grow more plants in less space. Made from rust-resistant powder coated green aluminum, this greenhouse is durable and will last you for years.

The hybrid greenhouse has a fully opening door with a lockable day/night flyscreen and twin wall polycarbonate panels that provide 90% light transmission so you can easily access your plants.

The polycarbonate panels are protected by an aluminum frame that is powder-coated in green to blend into the scenery. The door also has a lockable deadbolt with a security key for extra protection against predators looking for an easy meal.

Designed to withstand high winds (up to 56 mph), this greenhouse attaches directly to the Palram Nature Series ground anchors that are included with your purchase. This hybrid greenhouse also includes a specially designed door ventilation system that can be adjusted to fit your needs.

Other Great Small Greenhouses

Pure Garden 3-Tier Outdoor Greenhouse

If you don’t need a lot of shelf space, this freestanding small greenhouse from Pure Garden has only 3 tiers and is a great choice. This greenhouse is lightweight yet very sturdy and comes with everything you need to get started – including a 3 tier shelving unit, cover, and ground anchors.

This quick-assembling PVC greenhouse is just the right size for keeping plant seedlings warm during early spring or protecting your favorite potted plants during the winter months. The rust-resistant frame is made of durable PVC-coated iron to protect against the elements.

The clear cover is made of polyethylene allows ample sunlight for your plants, but also features a zipper closure along with rolling window vents for easy access to your plants while providing protection from cold weather.

Quictent Portable Cloche Mini Greenhouse

If you are looking for a portable greenhouse with plenty of room, this Cloche-style greenhouse from Quictent may be your best option.

This greenhouse allows you to grow your plants directly in the ground and provides enough soil warmth to increase your germination rate.

This greenhouse is made of a high-quality thickened fireproof ABS cover and aluminum frame. It’s designed to protect your plants from the wind and snow while still allowing plenty of sunlight in to promote plant growth.

The cloche greenhouse is easy to install and can be placed directly on the soil. It comes with a ground rod and tie-down ropes for maximum stability and wind resistance.

This Quictent portable greenhouse also features two large doors that allow you access to your plants from all sides. This allows you to stand inside the greenhouse without having to open up the doors which helps protect your plants from wild animals and harsh weather.

Educational Insights GreenThumb Greenhouse

The Educational Insights Green Thumb Greenhouse is the best small greenhouse kit for patios or the classroom. This 2 tier greenhouse assembles in minutes and features a zipper door and clear vinyl cover for easy access to your plants.

Ideal for tabletops, patios, balconies, and more, the Green Thumb Greenhouse will help keep your plants safe from pests and pets. It’s perfect for starting seeds or protecting your houseplants from harsh weather conditions, such as rain or snow, and is great for kids who want to start growing their own food.

Nova Mini Walk-In Greenhouse

If you are in need of a larger greenhouse but not ready to spend the money on a glass model, this mini walk-in-style greenhouse from Nova is perfect.

This indoor/outdoor greenhouse features a large zippered door that provides easy access to your plants as well as ventilation. The full-length roll-up windows can be rolled up or down for proper ventilation and sunshine exposure.

It is also designed to easily attach to other Nova structures, including the pop-up tent. This allows you to create an enclosed space ideal for growing your plants.

The Nova walk-in greenhouse is made of a strong powder-coated steel frame to protect it from rust or corrosion caused by harsh weather and the 8 shelves provide more than enough room for plants.

This greenhouse also comes with an adjustable ground anchor system, providing you with maximum stability in all kinds of soil conditions.

Ohuhu Mini Greenhouse

This greenhouse from Ohuhu is another 4 tier model that made our list. It is designed to be a starter unit that will help you get the most from your plants and features two zippered doors that give you access to your plants from all sides for easy checking on them and providing the necessary care.

This indoor/outdoor model comes with a ground anchor system, an extra-sturdy frame, detachable shelves, and protective roll-up covers that help protect your plants from harsh weather and other pests.

You can use this greenhouse to start seeds, house young plants, or extend the growing season of flowers and vegetables.

Eagle Peak Mini Garden Portable Greenhouse

This portable model from Eagle Peak is perfect for those who are looking for a small greenhouse that can be moved from one garden location to another.

The unit is perfect for bringing young plants through the winter months and protecting them from harsh weather conditions. You can also use this mini greenhouse to extend your growing season by providing a warm and inviting environment for your plants.

The portable greenhouse is designed with two roll-up doors that allow you easy access to your plants as well as ventilation, making it ideal for tending to your plants and monitoring their needs.

Thanks to the easy assembly, this model takes only a short time to set up and is also quick to take down when you want to move it.

Quictent Upgraded 20 x 10 ft. Portable Greenhouse

If you are a serious gardener who needs lots of space, look no further. This greenhouse from Quictent is large enough to give you room for up to 126 plants. By far, it is the best small greenhouse for vegetables on our list.

This model comes complete with its own ground anchor system, ventilation windows, and doors on both sides of the greenhouse as well as a detachable cover that will protect your plants from inclement weather.

The three rows of crossbars included in this kit give you great stability and the 2 heavy-duty layers of PE are reinforced with mesh, giving you 100% protection from pests, animals, and inclement weather.

The greenhouse also features an easy assembly design that makes it quick and simple to set up and take down in the event it needs to be moved.

Little Cottage Company Colonial Gable Greenhouse

This is definitely the most attractive greenhouse on our list and is perfect for those who live in an area with strict HOA rules. Unfortunately, it’s also the most expensive.

Perfect for growing vegetables and flowers, this made-in-the-USA greenhouse features fine Amish craftsmanship. It has functioning windows, corrugated polycarbonate roofing, and a floor kit is also available (not included).

The panelized walls make for quick construction and the unit comes with a fully illustrated manual. The interior shelves are great for holding plants and provide added storage space. It also comes primed and ready to be painted any color you like.

If you are looking for a beautiful greenhouse to spruce up your backyard, this one is for you!

What Are Greenhouses Used For?

Greenhouses are used for a variety of purposes. Not only can use your greenhouse to protect your tender plants from harsh outdoor weather and cold temperatures but they can also be used to grow plants that normally would not grow in your area or prolong the growing season of your favorite plant.

Benefits of a Small Greenhouse

Having a small greenhouse on your property can offer a number of benefits.

First, greenhouses are perfect for nurturing plants that need a little extra care to ensure healthy growth. They give you complete control over the growing environment so you can easily adjust it to meet your needs. For example, many small greenhouse kits have an adjustable thermostat that ensures your plants stay at ideal temperatures throughout the day and night.

Smaller greenhouses are also perfect for growing plants that you only plan to have for a single season or that you don’t normally grow in your area. For example, you might want to start a few tomato plants from seed but then move the young plants outside when it’s time. Having a small greenhouse helps ensure those plants make it until they can be safely transferred outdoors.

What Does a Greenhouse Actually Do?

Greenhouses work by trapping sunlight and converting it into heat. This causes the air inside to warm up, which then works to keep your plants warmer than they would be if the greenhouse was not present. The increased heat can be especially beneficial to plants that need a head start or suffer from exposure to cold temperatures at night or when the sun goes down. When combined with insulation, greenhouses create a microclimate that helps plants grow in places where the weather is cool or wet.

The Versatility of a Greenhouse

Greenhouses can be quite versatile. Some small greenhouses are designed so they can be easily folded up when not in use. Others may come with wheels that allow you to move them around your yard or garden to get the most out of the available sunlight.

Greenhouses will allow you to extend the season of your favorite flowers and veggies, as well as provide a warm microclimate for tropical plants that might otherwise struggle to grow in your area.

Types of Greenhouses

There are three main types of greenhouses: temporary, portable, and permanent. Temporary greenhouses are the least common type because they basically just act as protection for plants that already have an established root system. Portable greenhouses and greenhouse kits are larger and typically made out of materials like plastic. They can be easily moved around your yard or garden so you can maximize the amount of sunlight your plants get throughout the day. Permanent greenhouses, on the other hand, are usually pre-assembled and come as a kit that can either be assembled on-site or purchased as a whole. They often have a fixed, permanent structure that requires less upkeep and provides extra stability.

What Can You Grow In a Small Greenhouse?

A small greenhouse will allow you to grow a variety of plants that you might not otherwise be able to grow in your area. For example, greenhouses are perfect for growing tropical flowers and veggies.

They can also be used to get an early start on the gardening season or to extend the growing season past the first frost. In some areas, a small greenhouse can help you grow plants during the winter and even protect your plants from snow and cold winds.

What Makes A Good Small Greenhouse?

The best small greenhouse will have a few common features:

Toughened or tempered glass, which is stronger and safer than traditional window panes. Windows should be double-glazed at the very least because this creates a climate-proof seal to prevent heat from leaking out and unwanted cool air from entering.

Greenhouses made out of aluminum or steel frames are more durable than those with wooden or PVC frames. They are also more stable, making it easier to walk inside them without the risk of breaking the windows or roof.

Lens-style vents help to create air circulation and prevent heat buildup which can quickly kill plants if allowed to build up over time. Lens vents should be combined with adjustable thermostats that let you control the temperature in your greenhouse even on days when the weather outside is at its most extreme.

Greenhouses that come with automatic windows, vents, and doors are great because they can help you get the most out of any sunlight that might be available while preventing damage to your plants from too much heat.

Factors To Consider When Choosing A Greenhouse

When choosing the best small greenhouse for your needs, it is important to keep a few factors in mind.

How Much Space You Have

The amount of space you have available will largely determine which greenhouse is best. For example, if you have a small patio or yard with no buildings nearby, tabletop greenhouses are probably your best option. Manual roll-up doors and windows provide easy access to your plants while still allowing for ventilation during hot summer days.

On the other hand, if you don’t have much space for a greenhouse but still want one that is big enough to walk into, then a small greenhouse kit or portable greenhouse that can be set up and taken down as needed is the best choice for you.

How Much Space You Need

Once you have determined how much space you have, you will need to consider what kind of growing space you will need in order to be comfortable. If you only plan on growing a few potted plants, then a greenhouse with roll-up doors will probably suffice. On the other hand, if you want to grow bigger plants that require more space (like small trees or tomatoes), then it would be best to consider buying preassembled greenhouses that allow for more vertical space since they tend to have wider aisles.

How Protected Your Plants Need to Be

Some plants are more tender than others and require better protection from the elements. If you live in a cold region and want to protect your plants from snow and cold, then you should probably buy a greenhouse that comes with fully automated windows and doors. This way, you can just set the temperature at night or on especially chilly days instead of worrying about if the window is open or closed.

Build Materials

Greenhouses come in a variety of different materials from wood to plastic. Wood greenhouses are sturdy and can be made with beautiful curves that let more light inside, but they will need more upkeep than plastic models. Glass is also a popular material for small greenhouses because it lets in plenty of natural light. However, tempered glass is safer for plants since it does not shatter as easily as normal window panes.

Indoor vs Outdoor

Some greenhouses are designed for indoor use while others are made to withstand outdoor elements. If you plan on setting up your greenhouse inside a building or garage, then there is no need to worry about what kind of materials have been used in the structure. On the other hand, if your greenhouse will be set up outdoors, you should consider one that can repel water and leaves to prevent rusting and rotting.

Greenhouse Size And Shape

The size of the greenhouse has a big impact on how much it can hold and its overall durability. The basic rule of thumb is the larger your greenhouse, the easier it will be to maintain the constant temperature you desire for your plants. However, if you are looking for a greenhouse that will fit in with the style of your house, then it’s best to find one that has been specially designed to match the look and feel of your home.

Size also matters when it comes to how much weight the structure can hold. Smaller greenhouses may be able to handle plants and potting soil, but not much else. So make sure to check the weight capacity when you are shopping for a greenhouse.

Tiers and Shelving

Shelving is an important element in any greenhouse. If your greenhouse is too crowded with plants, then ventilation can become a problem. Shelves help you have more room for different types of plants so they are not all crowded together in one place. A tier is also important if you plan on using your greenhouse to grow taller trees or tomatoes. Placing them higher up will give them more access to light and make your greenhouse more versatile.

Portability

Some greenhouses are intended to stay in one place while others can be moved around. If you plan on moving your greenhouse, then a lightweight model that can be carried by one person is best. Portable greenhouses are also good for people who don’t have much space to set up their greenhouse or for those who want to take advantage of the summer season and move it where it’s warm.

If you want a greenhouse but don’t have room for it or can’t afford one, then you should consider buying a portable greenhouse kit instead. These are affordable options that consist of flexible polycarbonate panels fitted together in order to create the shape of your choice. Portable greenhouses are easy to set up, however they can’t hold any more weight than what you would expect from an average-sized greenhouse.

Ventilation

Plants in a greenhouse with poor ventilation are doomed. That’s why it is important to find a greenhouse with plenty of ventilation to ensure that your plants can get enough airflow at all times.

Weather Resistance

If your greenhouse will be outdoors, good weather resistance is a must. The best small greenhouses will be able to stand up to wind, rain and snow if the builders have used the proper materials. Look for models that are built from strong materials such as aluminum or steel frames with polycarbonate panes. Greenhouses should also have solid flooring to keep any water from seeping in through cracks in the foundation.

Overall, the best small greenhouses will be made from strong material that is designed to withstand a wide range of weather conditions.

Other Features

Other features to consider are temperature control and warranty type. A good greenhouse should have a way to adjust the temperature so that it can be more comfortable for your plants. It’s also important to find out how long the warranty is on your greenhouse and if replacement parts are available.

Greenhouse Kits

If you don’t want to worry about assembling your own greenhouse or if you are not very handy with tools, then buying a greenhouses kit is the best choice for you. These greenhouses arrive in one piece and can be set up quickly without any hassle. If you find that the greenhouse is too small for your needs, then you can easily buy additional panels to expand on it.

How do you maintain a greenhouse?

Let’s face it, greenhouses are not cheap so you want to prolong the life of your greenhouse with proper care and maintenance. Let’s look at a few maintenance tips to keep your’s going strong.

Disinfect your greenhouse once a week with disinfectants that are specifically made for the greenhouse industry. This is important because it will kill any harmful bacteria before they have a chance to spread and damage your plants. It’s also beneficial if you have animals or children who come into contact with your plants. Be sure to remember to disinfect your greenhouse once a week!

Don’t over-water your plants. It’s easy to become attached and keep checking on your plants, but overwatering them can cause mold and fungus that damage the roots and leaves of the plant they will also attract pests such as ants. Only water when the top layer of soil feels dry and always make sure that your plants have drainage.

Make sure your greenhouse is properly lit. If you plan on growing any flowers or vegetables in your greenhouse, then it’s important to give them enough light over the course of the day. Plants need different amounts of sunlight depending on their species so be sure to research which ones can thrive in less light.

If you follow these simple steps, then your greenhouse will last for years to come and be a source of fresh food or flowers that can brighten up any yard or garden.

Where should you place your small greenhouse?

Most people put their greenhouses in sunny areas where they can easily receive lots of sunlight during the day to keep plants healthy and growing strong. However, this isn’t always necessary if you plan on growing plants that prefer shade or you can add artificial lights to your greenhouse.

If you are using artificial lights or are growing plants that prefer shade, you can put your greenhouse pretty much anywhere, but if you are growing plants that thrive in full sun, you should place your greenhouse in an area that receives at least six hours of sunlight a day.

Not only is the location important for giving your plants enough light, but it will also affect how much additional heat they receive.

The Drawbacks of Greenhouse Ownership

Owning a greenhouse is great to extend your growing season or to grow plants that would otherwise not survive in your climate, but it can be a lot of work. Most greenhouses require a lot of maintenance and care to stay healthy so you will have to spend some time every week caring for it. If you don’t want to take the time or if you don’t have the space, then buying from a greenhouse might not be the best choice for you.

Frequently Asked Questions

Should a greenhouse be clear or opaque?

Your greenhouse should be transparent enough for sunlight to get through without forcing it in. Clear greenhouses might let in too much heat and cause your plants to dry out, but a greenhouse that lets in just the right amount of light will be perfect for growing healthy plants. Opaque greenhouses are great for growing in cooler climates because they will trap the heat inside.

How thick should the plastic be for a greenhouse?

The plastic covering your greenhouse should be thick enough to protect your plants from the elements and give them the lighting they need. Thicker plastic is more durable, but it can be expensive. However, you should always make sure that your greenhouse has thick enough plastic because if it’s too thin or brittle, then sunlight might not get through or even worse, rain or snow may cause it to seep in.

Can I put a greenhouse in the shade?

Yes, greenhouses can be put in the shade, but they will require artificial lighting during the early morning or late evening.

Does a greenhouse have a weight limit?

Yes. Consult your manufacturer’s instructions to see the exact weight limit for your particular greenhouse.

Final Thoughts

If you’re looking for the best small greenhouses, then there are many options to choose from. There’s plenty of information here about all the different types and sizes of greenhouse kits that can be found today – so what are you waiting for? Take a look at our selection and find your perfect match!