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Harmony 6 ft. x 12 ft. Greenhouse Kit - Green Structure & Clear Panels

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The Harmony greenhouse kit is a beautiful entry into the world of hobby gardening.

The greenhouse wall and roof panels are made of a nearly unbreakable polymer called polycarbonate that has the light transmission benefits of glass, but is lighter, stronger, and safer. The crystal-clear single panel roof and walls protect your plants from UV rays while providing all the full, direct light they need to thrive. This is especially ideal for germinating seeds and starting plants to heat up the soil and encourage germination.

The hobby greenhouse frame is made of rust-resistant aluminum mounted on a heavy-duty galvanized steel base for ultra-durable structural support. Other features include an integrated rain gutter to disperse the rainwater, a roof vent, and a lockable hinged door with a magnetic catch to help control temperature and humidity. The unique sliding panel system creates better insulation, stronger resistance to wind, and makes it easier to assemble than other DIY Greenhouses.

With this backyard greenhouse, you can prolong your growing season by starting in the early spring and extending your plant growth beyond the first fall frost. With its easy assembly, durable materials, and effective features, the Harmony greenhouse is the natural choice.

  • Highly resistant, fully transparent, and safe polycarbonate greenhouse (with Fine Shield Technology™)
  • Provides up to 100% protection from harmful sun rays (UV)
  • Life-time resilient polycarbonate plastic walls; do not fracture, turn yellow or opacify over time
  • Non-rusting, robust aluminum structure
  • Classic, and functional design, specially developed for optimal use of interior space
  • Built-to-last thanks to outstandingly durable materials
  • Maintenance-free
  • Protects your plants from the elements so that you can enjoy an extended growing period.
  • Technical information, including dimensions, panel thickness, and wind and snow load, can be found in the photo gallery above.
  • The greenhouses are available in various sizes & colors. Click to find more greenhouse kits.
Model: #701783

Dimensions

A Length 370cm 12'2"ft
B Width 185cm 6'1"ft
C Height 208cm 6'10"ft
D Door Width 56.5cm 1'10"ft
E Door Height 163cm 5'4"ft

Product Details

Greenhouse Accessories

Fan heater, lighting kits, shade cloth kit, automatic roof vent opener, staging and shelving, plant hangers, trellising kit, and drip irrigation kit are all available for purchase separately. Check out our certified Canopia accessories  

Galvanized Steel Base

Adds structural stability

Roof vent

Provides airflow and allows regulation of heat and humidity

Rating and Reviews

4.81 (120 Reviews)
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Customer Reviews (120)
  1. Dan Country: United Kingdom (UK)

    A decent product at a decent price

    I purchased this in January 2024 for my wife's birthday. I finally put it together in March on a base built from Pine Sleepers. The build process wasn't very difficult and I managed to construct it alone in a single day. It is very important to get the base absolutely level. It has worked very well over the summer. We...
  2. isa05 Country: Sweden

    Ok I'll give it a try

    Satisfied with the greenhouse. It’s sturdy and the plants are thriving, thanks to the excellent light transmission. However, I did have to buy extra anchors for stability. It's good, but be prepared for some additional setup costs.
  3. emm2015 Country: United States (US)

    Decent look and look professional

    The Harmony Greenhouse is decent. It looks nice in the garden and the plants are doing well so far. The assembly system is convenient, though I found the instructions could be clearer. A good buy, but there's room for improvement

FAQ

No, it is not an option, it cannot be performed.
Yes, it can be disassembled, relocated and reassembled at a different location.
No, it is not an option to get doors on both ends.
It is not possible to install the Lean To Grow House’ door at the other side. It is possible to install only as shown in the instructions.
The greenhouses do not come with a floor or base.
Yes, the polycarbonate panels are high impact resistant and withstand hail.
The warranty for all our greenhouses is for at least 5 years, some for more. The crystal-clear single layer or twin-wall polycarbonate panels maintain their integrity, they do not discolor, opacify, fracture or shatter over time.
Each wall section can carry up to 44 lbs. at most – an entire wall would depend upon the greenhouse’ size.
It can be anchored to a foundation, depending on the greenhouse, some have compatible holes at the bottom of the greenhouse base, and some have their own integrated anchoring. Yes, the greenhouse can be anchored to concrete slab. It can be anchored directly to the ground using ground stakes (ground stakes are not supplied with the greenhouse kits). *Firmly connect the product to a level surface immediately after completion of the assembly. Anchoring this product to the ground is essential to its stability and rigidity. It is required to complete this stage in order for your warranty to be valid.
The Canopia Greenhouse can be used year-round, but there are several factors to consider. The two main factors are weather and plants. What are the plants you want to grow and how much heat or cold can they handle? No matter where you live, greenhouses can be 20-40 degrees hotter inside during the day and at night they will be the same temperature as the outdoors. This is without any supplemental heating or cooling. Depending on where you live, heating and / or cooling your greenhouse can make a difference. If you need to heat or cool your greenhouse in extreme weather conditions, you may want to consider a twin-wall greenhouse such as the Canopia Glory Greenhouse which has a 10mm polycarbonate covering.

Assembly guide

Assembly instructions & Certificates for Downloads

HARMONY_6X4 / 2X1.3
HARMONY_6X6 / 2X2
HARMONY_6X8 / 2X2.5
Harmony_6X8 / 2X2.5_1Box
HARMONY_6X10 / 2X3
Harmony_6X10 / 2X3 (Split version)
HARMONY_6X12 / 2X3.7
Harmony-Mythos_Hybrid Certificate EN1090

Foundation

A
Prepare the site

The product must be built on a solid anleveled surface in order to perform properly.

1 - Clear the site
 
2 - Level the ground
 
 
Important We recommend checking for restrictions or covenants for building this product in your area. In addition we advise to check if you need to submit any forms or if any permit is required prior to building the product.
B
Choose your foundation type

As a foundation, we recommend using three material types: Concrete / Pressure treated wood / wood deck / Paver blocks

Option 1: Solid foundation
 
Preferred
Option 2: Solid frame
 
Preferred
Firm ground / grass
 
 
Only With External Anchoring Kit (Sold Separately)

* The size of the greenhouse displayed is for illustration purposes only and may not reflect the size of your greenhouse.

C
Anchor to foundation
On a solid foundation / frame
 
 

Secure the product to the foundation of your choice using suitable screws & plugs or masonry anchors (not supplied).

Make sure you have at least 5 cm / 2″ between the product base and the edges of your foundation – on all sides.

On soil / grass
 

Secure the product to the ground surface using suitable long pegs (not supplied). Please consult with an expert regarding which fasteners are suitable for other surface types.

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