Call to Order: 0800 098 8877

0800 098 8877

Advice & Blog

£10 OFF!

Use code SUMMER10 in the basket min order £299 (Greenhouses)

Palram Canopia Harmony 6x4 Green GreenhouseClear Polycarbonate

Harmony 6x4 Greenhouse: Enjoy a Safe and Stylish Growing Space with Rust-Resistant Frame, Easy Access Door, and Virtually Unbreakable Glazing. 5-Year Warranty Included!

Select your Size:

Select your Frame Colour:

Add Palram Options?

Palram Canopia 2 Tier Staging
+ £69
Qty 1
Palram Canopia Automatic Roof Vent Opener
+ £49
Qty 1
Shade Kit
+ £45
Qty 1
Plant Hangers
+ £10
Qty 1

Palram Options information

Palram - Canopia 2 Tier Staging - £69.00
Palram - Canopia 2 Tier Staging

Heavy Duty resin 2-tier staging with drainage holes for plant storage; 850mm H x 400mm D x 800mm W.


Palram Canopia Automatic Roof Vent Opener - £49.00
Palram Canopia Automatic Roof Vent Opener

Add an autovent that will automatically open your roof vent to ventilate your Palram - Canopia greenhouse. No power supply needed.


Shade Kit - £45.00
Shade Kit

Shade kit prevents plant scorching from UV rays; screws into greenhouse frame with multipurpose hand screws/plant hangers.


Plant Hangers - £10.00
Plant Hangers

Plant hangers screw into the frame and allow you to run wires or string from floor to roof for growing vine plants. (10 per pack)


Add Greenhouse Flooring?

Fastfit 6x4 Greenhouse Floor Kit
+ £95

Greenhouse Flooring information

The Fastfit 6x4 Greenhouse Floor Kit is the most cost effective and simple way of providing a level floor for your Greenhouse.

Fastfit 6x4 Greenhouse Floor Kit - £95.00
Fastfit 6x4 Greenhouse Floor Kit

The 6x4 Greenhouse Floor Kit comes with a simple to construct click together system complete with water permeable membrane to provide essential drainage for your greenhouse whilst keeping the weeds at bay. Quick and easy preparation means no waiting times for concrete to dry.

NOTE: This kit must be placed on a level and compacted surface that will not subside. It is essential that a greenhouse is built onto a hard, level surface to ensure stability and a long working life.

NOTE: Our fitters only install greenhouses onto slabs or concrete and therefore is not compatible with this floor kit.


The Palram Canopia Harmony 6x4 in green is a smart little greenhouse that`s perfect for any little garden or allotment. Clear polycarbonate makes it very safe for family use.

The Harmony 6ft x 4ft greenhouse is packed with some great features. The clear as glass polycarbonate, a proper opening door with latch and the slide in glazing system where you won`t be needing fiddly glazing clips. The slide in glazing system also helps with wind resistance to help stop glazing popping out in windy conditions.

This Palram Canopia Harmony 6x4 has a single opening roof vent for ventilation, an outward opening door, aluminium base and integral gutters.

Not Suitable for Windy or Exposed Positions

If you are in a windy or exposed position we recommend a Glass Greenhouse, preferably a Toughened Glass Greenhouses.

  • 1.85m (6ft) Wide Aluminium Greenhouse
  • Crystal Clear Polycarbonate Glazing
  • Powder Coated Aluminum Frame
  • Built in gutters
  • Galvanized Steel Base Plinth
  • Locking Outward Opening Door
  • Sliding Panel Assembly System
  • 1 Opening Roof Vent
  • 5 Year Warranty

1-Man Deliveries: Your new Palram Shed or Greenhouse will be delivered within 3-5 working days.

2-Man Deliveries: Larger items will be delivered within 7-10 working days.

You will receive a text message from Arrow XL to schedule your delivery. Please respond as soon as possible to ensure prompt delivery.

Greenhouse Dimensions

Greenhouse Size Diagram

Greenhouse Dimensions

A: Greenhouse width

1850mm (6′)

B: Greenhouse depth

1260mm (4′ 1″)

C: Ridge height

2090mm (6′ 10″)

D: Eaves height

1340mm (4′ 4″)

E & F: Door Size

560mm (1′ 10″) x 1710mm (5′ 7″) (aperture)

Minimum Base Size

1850mm (6′) x 1260mm (4′ 1″)

Crystal Clear Polycarbonate Glazing

Crystal Clear Polycarbonate Glazing is unique to Palram - Canopia greenhouses. This Shatterproof glazing is ideal for a family garden where safety is paramount.

Palram Harmony Sliding Panel
Slide-In Glazing System

Palram - Canopia Greenhouses benefit from this neat glazing system where the polycarbonate just slides into a groove within the frame to make it secure.

Palram harmony Intergrated Gutters
Integrated Gutters

You get integrated gutters on both sides of the greenhouse. Simply attach a length of hosepipe with a jubilee clip to the universal fitting!

Palram Magnet Door Silver
Locking Outward Opening Door with Latch

Easy to secure with a padlock.

Frequently asked questions

  • What are the different types of Polycarbonate Glazing?

    Clear Polycarbonate: This polycarbonate is completely clear like glass. It is very thin at 0.2mm, but extremely tough and shatterproof.

    Twin Wall Polycarbonate: This polycarbonate is virtually unbreakable and high impact resistant. They are slightly opaque, preventing strong sunlight exposure, yet offer 80% light transmission with high thermal insulation. The panels are 100% UV protected and will not discolour, fracture or shatter.

  • Is polycarbonate glazing strong enough?

    Yes it’s shatterproof and high impact resistant. However, as polycarbonate is very light, we do not recommend placing these greenhouses in exposed areas with high wind.

  • Does the greenhouse come with a floor?

    No, there is no floor or base. These greenhouses are ideally to be placed on a concrete, slab or decking base.

  • How do I secure the greenhouse to my foundation?

    We recommend securing the greenhouse to a hard, level surface (concrete, slabs, or decking) immediately after construction. This is essential for the stability and rigidity of your new greenhouse. You can use a screw and a washer through the compatible pre-drilled holes in the greenhouse frame into a raw plug in your concrete/slab surface.

  • Will you let me know when the delivery is?

    Yes, you will be notified by text where you can then pick which delivery day suits you. Easy!