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Mythos 6 ft. x 4 ft. Greenhouse Kit - Silver Structure & Twinwall Panels

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The Mythos 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 double walls diffuse intense sunlight that can stress plants, inhibit growth, and provide twice the heat retention of single panels for a stable environment.

The Mythos 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 Mythos greenhouse is a natural choice.

  • Highly resistant, transparent, and safe polycarbonate greenhouse
  • Built with light-diffusing twin-wall glazing for soft light irradiance and level temperatures
  • 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
  • Stout, rust-free aluminum structure
  • Clean-lined and functional design
  • DIY greenhouse, maintenance-free – built to last thanks to outstandingly durable materials
  • 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: #701636


A Length 126cm 4'2"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  

Aluminum Frame

Non-rusting aluminum frame provides a highly durable and extra-rigid structure Galvanized (rust-resistant) steel perimeter base for increased durability and stability. Aluminum Structure Color Options: Silver - Natural mill finish, Grey - RAL 7012, Green - RAL 6005  

2 Roof vents

Two manually adjustable vent windows for improved ventilation

Rating and Reviews

4.35 (62 Reviews)
Rating Breakdown
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Customer Reviews (62)
  1. colum Country: United Kingdom (UK)

    Service beyond the norm - thankyou!

    I bought a Palram Mythos in 2021 via a different website. Following the recent storms i had suffered damage to a polycarbonate roof panel - the original retailer wasnt able to help but referred me to Palram. Thank you Kirsty for the wonderful service - having provided pictures Palram have sent out a new panel at no cost! So refreshing...
  2. rad1antWh1z Country: United States (US)

    Checking out the greenhouse goods

    Unboxing was straightforward; each piece was labeled clearly. However, the assembly process was a labyrinth of complex steps. I felt like I was in over my head, but customer service's timely email guidance made it manageable.
  3. aur0raflux Country: United States (US)

    The Beginning of my greenhouse

    Unboxing was an organized affair, but assembly was the ultimate test of patience. Customer service's phone support was my lifeline.


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.


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.
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
Option 2: Solid frame
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.

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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