7 Best Greenhouse Kits And Buying Guide

Do you want to brighten up your garden by using the best greenhouse kits? Even a small greenhouse can accommodate a variety of plants , giving your garden a makeover and a ton of fresh vegetables.

Home-Complete HC-4202 Walk-In Greenhouse- Indoor Outdoor...
5,391 Reviews
Home-Complete HC-4202 Walk-In Greenhouse- Indoor Outdoor...
  • 8 DURABLE SHELVES- The 8 sturdy shelves provide plenty of...
  • INDOOR OUTDOOR- This versatile greenhouse is ideal for both...
  • EASY ASSEMBLY- With no tools required, the greenhouse is...

We find Home-Complete HC-4202 Walk-In Greenhouse the best overall greenhouse home, a must-have item.

It has durable shelves with PVC cover and a sturdy frame made of steel. You will be impressed by its versatility, all-season use for indoors and outdoors.

Coming with 8 sturdy shelves, it provides you with enough space to grow many different plants.

The weather-resistant cover keeps your favorite plants warm, protects them from sudden temperature changes, and keeps insects and pests away. Anyone looking for an outdoor greenhouse can’t go wrong with this kit.

Product Reviews Of 7 Best Greenhouse Kits

Home-Complete HC-4202 Walk-In Greenhouse – Best Overall

Home-Complete HC-4202 Walk-In Greenhouse- Indoor Outdoor...
5,391 Reviews
Home-Complete HC-4202 Walk-In Greenhouse- Indoor Outdoor...
  • 8 DURABLE SHELVES- The 8 sturdy shelves provide plenty of...
  • INDOOR OUTDOOR- This versatile greenhouse is ideal for both...
  • EASY ASSEMBLY- With no tools required, the greenhouse is...

We prize the Home Complete HC 4202 as the best overall greenhouse kits for its excellent performance in every aspect.

First, it comes with 8 sturdy shelves to support all kinds of planters, trays, and pots, giving you plenty of space to grow whatever you like. If you have space yet still want to grow various plants or flowers, this pick is definitely for you.

You have your choice to use this greenhouse either indoors or outdoors. Coming with a sturdy steel greenhouse frame and PVC cover, it can protect your crop from heavy rains, snow, and other bad weather conditions.

Home-Complete product also offers a compact dimensions of 56.3 x 56.3 x 76.7 inches. Even when you don’t have a yard, you can store this indoor greenhouse kit in places like patios, decks, or garages.

Moreover, you don’t need any more tools to set up this greenhouse as it is easy to assemble. No need to struggle with the instructions and no tool required. All you need is to connect the included rods and cover the canvas.

However, we find that there are tears around its zipper.

What We Like

  • Eight durable shelves
  • Easy to assemble
  • Sturdy steel frame and PVC greenhouse cover for optimal protection
  • Available for both outdoor and indoor use.

What Can Be Improved?

  • Tears around the zipper

Tierra Garden 50-2500 Haxnicks Garden Greenhouse – Best For Portability

Sale
Tierra Garden 50-2500 Haxnicks Garden Sunbubble Greenhouse,...
335 Reviews
Tierra Garden 50-2500 Haxnicks Garden Sunbubble Greenhouse,...
  • INSTANT GREENHOUSE – Our Haxnicks Garden Sunbubble...
  • ADJUSTABLE – The Sunbubble is built to work for you....
  • INNOVATIVE DESIGN – The innovative dome shape provides...

Our runner-up spot belongs to the 50-2500 Haxnicks Garden Greenhouse from Tierra Garden for its high portability. It comes with a dome-shaped design with dimensions of 10.2 x 110.2 x 78.8 inches and only 33-pound weight.

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This construction makes it more portable and compact to move and store than other competitors out there.

This dome greenhouse kit has 8 adjustable roof vents, allowing the greenhouse to get a great airflow. With its wide-set design, the greenhouse offers ample space for planting and staging.

You will love this Haxnicks Garden Sunbubble Greenhouse as it is extremely simple to assemble, move, and store with an unpatented folding design.

As this portable greenhouse kit is made of flexible fiberglass rods and UV-stabilized PVC, it is adaptable and sturdy to your outdoor activities and gardening.

Plus, thanks to the frame’s curve, the surface can stay 90 degrees in the sun’s direction all day long, offering minimum reflection and maximum light penetration. Those growing heat-tolerant plants can benefit from this feature.

On the downside, you can pay a higher price for this compact greenhouse than other products out there.

What We Like

  • Dome-shaped design with eight adjustable vents
  • Easy to set up
  • Compact design for easy movement and storage
  • Maximum penetration and minimum reflection of light for growing
  • Flexible fiberglass rods and UV-stabilized PVC

What Can Be Improved?

  • Higher price

Palram HG5504G Hybrid Hobby Greenhouse – Best For Windy Area

Sale
Palram HG5504G Hybrid Hobby Greenhouse, 6' x 4' x 7', Forest...
595 Reviews
Palram HG5504G Hybrid Hobby Greenhouse, 6' x 4' x 7', Forest...
  • Virtually unbreakable 4 mm twin-wall polycarbonate roof...
  • Crystal clear polycarbonate side panels provide 90% light...
  • Rust resistant green powder-coated aluminum frame extends...

If you live in a windy area, you might want to find a greenhouse kit that can withstand strong winds. In this case, the Palram Hybrid Hobby model might be your answer.

This mini greenhouse kit features a galvanized steel base for optimal strength against gales. Also, it comes with a rust-proof aluminum frame extending 6 inches – 10 inches from floor to peak. Its solid structure reduces the risk of blowout in blustery condition.

It has crystal clear polycarbonate side panels, allowing 90% of sunlight to go through. Plus, this mini-size greenhouse kit boasts virtually unbreakable twin-wall roof panels of 4 mm.

These panels can diffuse light and block up to 99.9% of UV rays, reducing the risk of plant burns and shade areas. This quality is perfect for sprouts and seedlings, which need more light yet can’t resist overheating, to thrive.

However, we found that this kit doesn’t work well with any inclement weather. Thus, you have to ensure to put it in a sheltered area and reinforce on all of its sides.

What we like

  • Galvanized steel base for optimal strength against strong winds
  • Allow 90% light to pass through
  • Unbreakable twin-wall polycarbonate roof panels
  • Block up to 99.9% of UV rays

What can be improved?

  • Low performance in inclement weather

JULY’S SONG Greenhouse – Best For Snowy Condition

JULY'S SONG Greenhouse,Polycarbonate Walk-in Plant...
114 Reviews
JULY'S SONG Greenhouse,Polycarbonate Walk-in Plant...
  • 【EXTEND THE GROWING SEASON】Perfect for a first-time or...
  • 【STURDY & DURABLE】This DIY Greenhouse Kit is made of 4mm...
  • 【MULTI-FUNCTION DESIGN】The greenhouse for outdoor has...

The next position comes to the July’s Song Greenhouse for its stamina for heavy snow. This suggestion is made of 4mm twin-wall unbreakable polycarbonate panels and high-end thick aluminum frame, allowing it to resist strong winds and UV rays.

The greenhouse kit comes with an adjustable roof vent for easy ventilation, slide doors for effortless access, and integrated rain gutters for efficient drainage of heavy snow and water. The harsh winter is no longer a problem with JULY’S SONG.

Together with a heavy-duty galvanized base, this greenhouse can deal with snowfall, offering solid support for your plant nursery. If you want to grow plants in snowy winters, this greenhouse can be a capable assistant.

It also stands out with a perfect customer service that will support you all the time. Not many providers can offer this great customer experience.

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Plus, the manufacturer also offers a 2-year warranty to show its confidence in its product. Thus, you can rest assured whenever any issue happens.

July’s Song greenhouse kits have three dimensions of 6.2 x 8.2 x 6.4, 6.2 x 6.2 x 6.4, and 6.2 x 4.2 x 6.4 inches, allowing you to have more options to meet your growing space.

However, there are no shelves included in this kit.

What We Like

  • A two-year warranty
  • 4mm twin-wall polycarbonate panels
  • High-end thick aluminum frame
  • Various dimension variants to choose
  • Heavy-duty galvanized base to deal with heavy snowfall

What Can Be Improved?

  • No shelves included

Rion Hobby Gardener 2 Twin Wall Greenhouse – Best For Safety

Rion Hobby Gardener 2 Twin Wall Greenhouse, 8' x 20'
10 Reviews
Rion Hobby Gardener 2 Twin Wall Greenhouse, 8' x 20'
  • Virtually unbreakable 4 mm thick twin-wall polycarbonate...
  • Heavy-Duty resin frame improves insulation and creates extra...
  • Maximum safety - no glass to shatter or break

The Rion Hobby Gardener 2 is suitable for those with an extreme interest in gardening or professional growers with the “Pin & Lock” connector method and all the essential features like special walls, heavy-duty resin frame, etc.

The heavy-duty resin frame is UV-protected and offers a great green color that blends into your outside environment and keeps your plants safe with no glass to break or shatter.

With an exclusive “Pin & Lock” connector, you will find it simple to assemble and it can add more strength to your greenhouse.

You will have to get a heavy timber base or concrete pad to help support the structure. A higher base can give the structure greater stability and safety.

This greenhouse model boasts 4 mm polycarbonate roof panels and 6mm twin-wall side panels. Thanks to these materials, it can become sturdier to reduce the risk of collapse and deliver great insulation.

Plus, it is 8 feet wide and comes in various lengths to meet your needs and space.

Nevertheless, you can pay a small fortune for this greenhouse kit.

What We Like

  • 4mm polycarbonate roof panels and 6mm twin-wall side panels
  • Flexible design of 8 feet in width and various lengths
  • UV protected heavy-duty resin frame
  • “Pin & Lock” connector for simple assembly and extra strength

What Can Be Improved?

  • High price

Harmony Greenhouse With Starter Kit – Best For Beginners

Harmony 6' x 8' Greenhouse with Starter Kit
11 Reviews
Harmony 6' x 8' Greenhouse with Starter Kit
  • Virtually unbreakable crystal-clear Polycarbonate roof and...
  • Sliding panels assembly system – no glazing locking parts...
  • Ready to assemble pre-drilled profiles, pre-cut sliding...

Harmony Greenhouse is the best for beginners due to its easy assembly. You can find no difficulty when setting up this greenhouse.

What makes it effortlessly to install is its sliding panels system. Accordingly, you don’t need any additional glazing locking parts to set it up.

This kit boasts a virtually unbreakable transparent polycarbonate roof, allowing 90% of the sunlight to go through while blocking 99% of the UV rays.

This starter kit also stands out among other products for its resistance to 15 lbs per square foot of snow and the ability to withstand the wind of up to 55 miles/hour.

The producer uses rust-resistant and galvanized steel to construct the foundation of your greenhouse in order to guarantee maximum strength and stability.

Nevertheless, this greenhouse kit only comes with two shelves, offering less space for your plants.

What We Like

  • Easy to set up
  • Offer 90% light transmission rate
  • Block 99% of the UV rays
  • Deal with huge snow load and heavy winds
  • Rust-resistant and galvanized steel materials

What Can Be Improved?

  • Only two shelves included

Little Cottage Company Colonial Gable Greenhouse – Best For Design

Little Cottage Company Colonial Gable Greenhouse Panelized...
4 Reviews
Little Cottage Company Colonial Gable Greenhouse Panelized...
  • Pre-Primed and Ready To Paint
  • Fasteners/Hardware Included
  • Locking Door Handle Latch

Little Cottage Company Colonial Gable Greenhouse wins our heart for its adorable design, appealing at first glance. Particularly, it features a 34×72-inch adult Dutch door and roof window with colonial hinges.

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This kit looks like a cute little living house, not only enabling you to plant but also leaving your garden an impressive makeover. Consider the Cottage product if you want a greenhouse doubling as a decoration.

We highly appreciated its panelized wall sections, not just pre-cut, saving a lot of time for assembly. Also, this outdoor greenhouse is made of high-quality composite material, making it durable and strong enough to deal with adverse weather conditions like cold climates.

Another plus point is that the rate of light transmission through this greenhouse is 85%, ideal for boosting germination.

However, this durable greenhouse kit is quite difficult to move as its components are mostly heavy.

What We Like

  • Adorable design
  • Panelized wall sections for easy installation
  • High-quality composite material
  • 85% light transmission rate

What Can Be Improved?

  • Hard to move

Best Greenhouse Kits Buying Guide

What Are The Types Of Greenhouse Kits?

Glazed Free-standing Greenhouse

The glazed free-standing greenhouse strictly comes with a complete plastic cover, helping the manufacturer cut down the cost.

Though it comes at an affordable price, it doesn’t compromise important features to support the growth of plants, such as wide growing space and sturdy materials.

Lean-To (Attached) Greenhouse

You can share the wall of your house or garage with lean-to greenhouses. It is ideal for those who have a modest garden and a tight budget while also wanting to grow an impressive crop.

Because of the attachment to your house, the airflow is not as good as other greenhouse types, affecting your plant growth.

Window-Mounted Greenhouse

A special structure is constructed on a house’s window frame, most commonly found on a wall facing to the South. Your ideal position would be to attach to another suitable structure, or a house in Southern Exposed.

Many window-mounted greenhouse kits include polycarbonate glazing panels with rigid translucent twin-walls to help keep their growing area protected from sunlight and protect the plants from exposure to sunlight (lower the cost related to glass).

The construction cost is lower. In addition, electricity, heat, and water are commonly nearby as well.

However, temperature control is a hard thing.

How To Choose The Right Greenhouse Kits

Size

Lengths and widths of greenhouses are available in 2 feet increments. It is advisable to obtain an 8 foot-wide one so that you can stage on both sides.

Make sure the eaves are at least 5 feet tall (1.5 meters) for enough light to pass through.

If you had more space for your greenhouse, which is as big as a garden, then most gardeners would opt for a large greenhouse.

Panel Materials

There are 3 kinds of panel materials – polyethylene, fiberglass, and polycarbonate.

The plastic greenhouse is more affordable than other materials and provides perfect insulation. However, it cannot last long and might tear frequently.

The fiberglass material can perfectly diffuse light yet might break after a few months.

Meanwhile, the unbreakable polycarbonate greenhouse panels are great for providing excellent light diffusion, UV protection, and high durability. For this reason, it is an excellent type to have.

Features To Look For

Here come some features you can consider when buying a greenhouse kit.

Material

Obviously, plants cannot thrive without sunlight. Nevertheless, the presence of natural light at constant levels isn’t always the best for plants. It’s why you should examine the materials of the greenhouse before buying.

For plants requiring much sunlight and heat such as aloe vera, okra, sweet potato, and zucchini squash, we recommend getting an item with a thin and transparent plastic cover.

Otherwise, consider a thick and heat-resistant glass greenhouse kit. They will protect your plants from overheating.

UV Protection

Your plants can get damaged by the high exposure to UV rays. That’s why you need to choose a kit that can provide protection from harmful sunlight.

For the utmost safety, it is advisable to get the greenhouse made of polycarbonate to ensure comprehensive UV protection.

A brief introduction to greenhouse building by Tricia:

Conclusion

So you have gone through the 7 best greenhouse kits. In short, all suggestions mentioned above can mostly meet your requirements.

Of which, Home-Complete HC-4202 Walk-In Greenhouse is our best overall greenhouse home. It provides up to 7 sturdy shelves, offering a spacious zone for a variety of plants.. The HC-4202 Greenhouse is suitable for both indoor and outdoor use in all four seasons.

Last update on 2021-10-11 / Affiliate links / Images from Amazon Product Advertising API

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Jill Sandy

I am a sustainable focus gardener. I love decorating my home backyard with beautiful landscape design and creative garden care techniques I develop myself.