6 Best Lean-to Greenhouse Kits (Complete Buyer’s Guide)

Having a greenhouse in the garden can be a great gardening idea. In addition to improving the appearance of your garden, a greenhouse would enable year-round plant growth. Having said that, buying a greenhouse would be preferable to designing and building one from scratch. On the market, there are several choices. And in this article, we’ll concentrate on lean-to greenhouse kits out of all other types.

These greenhouses are fantastic when you don’t have enough space yet need to regulate the ecosystem for growing plants. Lean-to greenhouses have three faces rather than the four we find in conventional ones. And these greenhouses are so named because they ostensibly “lean” on an existing wall.

Lean-to greenhouses are simple to erect, reasonably priced, and well-liked. You would only need a few hours of your time to set up a Lean-to greenhouse. The top 6 lean-to greenhouses that are attractive and suitable for all budgets are listed in this post. And we must admit that we are really excited to share our thoughts on the modern lean-to greenhouse kit with our readers.

Image Product
Rion HG7514 Canopia Sun Room
  • UV protected
  • Acrylic wall panels
  • 4mm twin-wall polycarbonate
VIEW ON AMAZON →READ REVIEWS →
Palram - Canopia Hybrid Lean-to Greenhouse
  • Crystal clear polycarbonate side panels
  • 90% light transmission
  • Withstands winds up to 47 mph
VIEW ON AMAZON →READ REVIEWS →
Machrus OGrow Greenhouses for Outdoors
  • Spacious
  • Weatherproof
  • Rock-solid frame
  • Heavy-duty rust-resistant aluminum frame
VIEW ON AMAZON →READ REVIEWS →
Outsunny 6' x 4' Aluminum Lean-to Greenhouse
  • Aluminum alloy frame
  • Corrosion-free and peel-resistant base
  • Waterproof structure
VIEW ON AMAZON →READ REVIEWS →
EAGLE PEAK 6.6' x 3.3' x 6.9' Outdoor Lean-to Walk-in Greenhouse
  • Compact size
  • Includes powder-coated steel frame
  • PE covers
VIEW ON AMAZON →READ REVIEWS →
EAGLE PEAK 9'x 4' Portable Lean-to Walk-in Greenhouse
  • Ready-to-be used out of the box
  • Spacious
  • Two zippered doors
VIEW ON AMAZON →READ REVIEWS →

6 Best Lean-to Greenhouse

For individuals who want to extend the warm period and cultivate plants all year long, greenhouses are fantastic possibilities. The lean-to greenhouses, as opposed to conventional freestanding greenhouses, are built against a concrete wall or other similar structure.

1. Rion HG7514 Canopia Sun Room

BrandRion
MaterialResin & Polycarbonate
Item Weight292.20 lbs
ColorWhite
Size6’x14′

This item Includes:

  • Roof panels
  • Resin frames
  • Hinged door
  • Roof vent
  • Rail mounts

Rion’s HG7514 Canopia Sun Room is strong and perfect for erecting on a patio, deck, or porch. With the help of this lean-to greenhouse, you can easily convert your patio into a perfect sunroom area where you can grow your preferred plants all year long.

This greenhouse’s finest feature is its strong resin frames that can survive extreme weather conditions. Additionally, they won’t bend in strong winds. This greenhouse will also not be bothered by discoloration.

Since the twin-wall polycarbonate has been thickened to 4 mm during manufacturing, this Lean-to greenhouse may be considered a top-of-the-line product. The Rion HG7514 Canopia Sun Room will be a fantastic alternative as an exceptionally sturdy greenhouse.

Features

  • Roof panels are 100% UV protected
  • 3mm translucent acrylic wall panels
  • Heavy-duty resin frame
  • Hinged side door

Pros and Cons of Rion HG7514 Canopia Sun Room

Pros

  • Sturdy
  • Looks great
  • Clear panels
  • 100% UV-protected roof panels
  • Virtually unbreakable covering
  • Easy-to-assemble

Cons

  • The window vent may not feel very sturdy
  • Rail mounts may need lubrication
CHECK LATEST PRICE ON AMAZON

2. Palram – Canopia Hybrid Lean-to Greenhouse

BrandPalram
MaterialPolycarbonate, Aluminum
Item Weight61lbs
ColorSilver
Dimension96 x 49 x 88.6 inches

This item Includes:

  • Frame
  • Panels
  • Galvanized steel base
  • Rain Gutters
  • Adjustable roof vent
  • Lockable Hinged Door
  • Magnetic door stopper

One of the most dependable greenhouses available is the Palram Hybrid lean-to. Palram has made a name for itself as a consumer brand by offering reasonably priced, high-quality items.

This lean-to greenhouse has a smart structure that offers good visibility and 90 percent light transmission. The product is 4′ x 8′ and is made of aluminum and polycarbonate. This ensures strength and makes it less likely than glass to break under pressure.

The roof panels made of 4 mm double wall crystal polycarbonate are also virtually indestructible and can block up to 99.9% of UV rays. Every gardener would adore this feature. Furthermore, several vents on the roof enable the greenhouse’s ventilation to be controlled and extra humidity to be removed.

Features

  • Crystal clear polycarbonate side panels
  • 90% light transmission
  • Rust-resistant aluminum frame
  • Withstands winds up to 47 mph

Pros and Cons of Palram – Canopia Hybrid Lean-to Greenhouse

Pros

  • Excellent looking
  • Can withstand windy climates
  • Sturdy
  • The classic see-through design
  • Detailed instruction for installation

Cons

  • It May take an extended time for installation
CHECK LATEST PRICE ON AMAZON

3. Machrus OGrow Greenhouses for Outdoors

BrandOGrow
MaterialAluminum
Item Weight33.1lbs
ColorAluminum, Clear
Dimension74.4 x 48 x 84.6 inches

This item Includes:

  • Frame
  • Panels
  • Rain Gutters
  • Adjustable roof vent
  • Sliding door 
  • Shelving

If you are thinking of buying a simple walk-in greenhouse in the budget, nothing can beat the Machrus OGrow Greenhouse. OGrow is known for being one of the best brands in garden equipment. And you can trust its products for durability and the price tag.

The size of this lean-to greenhouse from OGrow is 74.4 x 48 x 84.6 inches, making it compact and portable. This greenhouse promises to protect your plants from damage and promote their growth by providing the ideal environment. This item, made of polycarbonate panels, blocks 99 percent of UV radiation and enables even sunray diffusion. The metal frame also assures longevity and resistance to rust.

The product is lightweight. Despite this, it promises to be nearly indestructible because of its superior design and materials. Furthermore, this greenhouse already has shelving, but you may add more shelves because of its roomy inside. The inside is adequately ventilated thanks to its vents and windows. Furthermore, the sliding door shields it from the elements.

The panels are covered by a normal 90-day warranty, while a 6-month warranty covers the frame.

Features

  • Weatherproof
  • Rock-solid frame
  • Pest control
  • Heavy-duty rust-resistant aluminum frame

Pros and Cons of Machrus OGrow Greenhouses for Outdoors

Pros

  • Made of the highest quality aluminum
  • Rust-free frame
  • Comes with shelving
  • The warranty covers the panels and frame
  • Included the sliding door
  • Portable and lightweight

Cons

  • The assembly might be an issue
CHECK LATEST PRICE ON AMAZON

4. Outsunny 6′ x 4′ Aluminum Lean-to Greenhouse

BrandOutsunny
MaterialAluminum, Polycarbonate Panel
ColorSilver, Clear
Dimension6.3′ W x 4.2′ D x 7′ H

This item Includes:

  • Frame
  • Panels
  • Rain Gutters
  • Shelving
  • Adjustable roof vent
  • Sliding door
  • Galvanized steel base
  • 4 ground stakes

The galvanized steel base and robust aluminum alloy frame of the Outsunny walk-in greenhouse offer stability and longevity. The galvanized steel frame can also withstand light rain and wind without issue. This Lean-to greenhouse is ideal for gardeners who want to construct a compact and walk-in greenhouse.

The panels of the Outsunny walk-in greenhouse retain the appropriate heat while blocking 90% of damaging UV rays. Basic shelves that can support the most weight and conserve space are provided in the package. Also, the built-in vent provides enough ventilation. For ease of access, the main door features a sliding function.

Features

  • Aluminum alloy frame
  • Corrosion-free and peel-resistant base
  • Waterproof structure
  • Five-level adjustable window

Pros and Cons of Outsunny 6′ x 4′ Aluminum Lean-to Greenhouse

Pros

  • UV protection
  • Windproof Level: 4
  • Stands stable on the ground
  • Roof ventilation

Cons

  • Assembly instructions are not that good
  • Long assembling hours
CHECK LATEST PRICE ON AMAZON

5. EAGLE PEAK 6.6′ x 3.3′ x 6.9′ Outdoor Lean-to Walk-in Greenhouse

BrandEagle Peak
MaterialAlloy Steel
Item Weight18.51lbs
ColorGreen
Water ResistanceYes
Dimension6.6’ x 3.3’ x 6.9’

This item Includes:

  • Greenhouse
  • 1 Shelf staging
  • 4 Ropes
  • 8 Stakes
  • 4 Steel bolts

If you need a greenhouse with an intuitive design, the Eagle Peak greenhouse is one of the best options. You may do the full installation yourself, and the setup doesn’t require much time.

This compact greenhouse model is built of alloy steel, which gives it the necessary solidity and measures 6.6′ x 3.3′ x 6.9′. The powder-coated steel frame further increases the product’s overall longevity. You will also receive UV protection and a water-resistant cover to protect your plants all year long. Further, this lean-to greenhouse allows the correct amount of sunlight to penetrate to maintain a high humidity level and warmth

Simple wire shelves are included in the box. There is, however, plenty of room to add extra shelves. In addition, this greenhouse only has a basic zipper closure, not a door. Last but not least, you will receive a primary user warranty to protect the greenhouse parts from damage.

Features

  • Compact size
  • It comes with the 1-year limited warranty
  • Includes powder-coated steel frame
  • PE covers

Pros and Cons of EAGLE PEAK 6.6′ x 3.3′ x 6.9′ Outdoor Lean-to Walk-in Greenhouse

Pros

  • Easy to install
  • Compact
  • Proper temperature and humidity control
  • A sturdy but lightweight frame
  • Water-resistant

Cons

  • The roll-up zipper door may not feel very sturdy
CHECK LATEST PRICE ON AMAZON

6. EAGLE PEAK 9’x 4′ Portable Lean-to Walk-in Greenhouse

BrandEagle Peak
MaterialPolyethylene cover & Steel frame
Item Weight30.3lbs
ColorGreen
Dimension9′ x 4′ x 8..2′

This item Includes:

  • Push pin 
  • PE Cover
  • Metal frame

The second Eagle Peak product on our list is this one. This lean-to greenhouse is simple to erect and includes a PE covering that protects your plants from the effects of the elements. In actuality, it requires no assembly and is ready to use right out of the box. Simply slide the frame open and fasten the greenhouse PE fabric.

This Eagle Peak greenhouse is portable and comes with a lock-canopy frame set. You also have the choice of installing hanging planters in addition to installing shelves. This is possible because this greenhouse’s frame is equipped with hooks.

This item was selected for our list because it is reliable, compact, and excellent for both novice and seasoned gardeners. Did we also mention the mesh fabric is environmentally friendly? Therefore, with this product, you can relax knowing that both the world and your plants are in good hands. Lastly, you’ll be impressed by the greenhouse’s two doors for simple access.

Features

  • Ready-to-be used out of the box
  • Spacious
  • Comes with the 1-year limited warranty
  • Two zippered doors

Pros and Cons of EAGLE PEAK 9’x 4′ Portable Lean-to Walk-in Greenhouse

Pros

  • Adjustable height
  • Eco-friendly mesh cover
  • Compact and portable
  • Two door access
  • Weather-resistant

Cons

  • Two-door access may fail to retail the interior heat
CHECK LATEST PRICE ON AMAZON

Best Lean-to Greenhouse Kits: Buying Guide

By now, you are well aware of the top lean greenhouse to choose from. The next thing to consider is choosing the right greenhouse for your lawn or yard. 

Let us tell you that there is no best or worst greenhouse. Which greenhouse will work best for you ultimately relies on your needs, available space, regional climate, and other factors. Therefore, run any product through a few levels of demand and suitability before approving it. What do those mean? We’ve included a few things that every gardener should consider before purchasing a lean-to greenhouse below.

Size

You wouldn’t want to choose a greenhouse that appears to be overly large or one that is too little to hold all of your plants. As a result, to ensure that your yard or the space where you intend to install the Lean-to greenhouse is large enough, measure it. Second, determine whether the greenhouse you’ve picked can hold all the plants you want to maintain there. Thirdly, if you’re looking for a walk-in greenhouse, ensure it has enough space for the purpose.

Material

Look for the greenhouse’s material after ensuring it is the proper size. Various greenhouses are available in plastic, polycarbonate, PE cover, and glass. Every substance has advantages and disadvantages. For example, glass is regarded as the ideal material for greenhouses because it can retain heat more effectively than other materials. A glass greenhouse would be very heavy and bulky, though, so that would be a drawback. Glass is also vulnerable to breaking or cracking.

Hence, study all the materials and features to find the right match for your gardening.

Also Read: 7 Best Greenhouse Plastic that Works Well

Ventilation

Proper ventilation is a must for every greenhouse, irrespective of the style. The ventilation aids in maintaining the right temperature and humidity inside a greenhouse. With proper vents and windows, the inside of a greenhouse can get immensely heated, causing heat damage to the plants. Hence, check the number of vents and windows your chosen greenhouse possess.

However, during winters you don’t need so much of a ventilation, and you have to maintain the internal temperature with some of the best greenhouse heaters. As too high temperature is damaging to the plants, likewise, too low temperature may also be devastating.

Weather Resistance

A different set of advantages comes with selecting a weather-resistant greenhouse. For example, these greenhouses can survive seasonal severe rain and snowfall. As a result, it is a feature you must choose when choosing a greenhouse.

Cost

How can we choose a greenhouse without taking the price into account? Usually, purchasing a greenhouse kit is more expensive than building one from scratch. However, the second alternative requires more labor. Therefore, whether you should choose a ready-made greenhouse or a DIY greenhouse would rely on your level of experience building greenhouses and the time you have available. Having said that, greenhouse kit prices range from $100 to over $10,000. The cost would vary based on the item’s size, features, materials, and other elements.

Warranty

Selecting a greenhouse with a manufacturer’s warranty could assist in protecting you from damages and repairs.

FAQs

A Lean-to greenhouse should be placed on which side of the house?

It is ideal to erect a Lean-to greenhouse on the south side of the house. 

Are Lean-to greenhouses worth it?

Each greenhouse has a unique set of benefits and drawbacks. This also applies to lean-to greenhouses. You can set up a lean-to greenhouse with ease if you have a small surface and a wall. Additionally, these greenhouses typically have a higher capability for heat retention than a conventional greenhouse. But there’s no denying that these hothouses are worth every penny for small spaces.

What can you grow in a Lean-to greenhouse?

You can grow almost every type of plant in a Lean-to greenhouse. From herbs and vegetables to flowers and fruits, a Lean-to greenhouse would help plants to survive the cold weather by retaining a warm temperature.

How much can a Lean-to greenhouse cost?

The greenhouse’s features would mostly affect the price. Nevertheless, the cost would normally range from $10 to $25 per square foot on average.

Can you erect a Lean-to greenhouse against a fence?

There are no limits on erecting a lean-to mini-greenhouse against a fence. The fence must be strong and in good condition, though. Lean-to greenhouse installation is not at all advised using damaged fences.

Conclusion

We hope you found the lean-to greenhouse you were looking for among the top six we listed above. Let us assist you if you are still perplexed. As a result of our research, the Rion HG7514 Canopia Sun Room is a solid, practically unbreakable lean-to greenhouse. This item has all the essential characteristics that make a lean-to greenhouse great and has a fashionable appearance. On the other hand, the Palram – Canopia Hybrid Lean-to Greenhouse is the best option if you prefer a weather-resistant product.