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Polytunnel garden greenhouse

Outsunny Walk-In Greenhouse Polytunnel

NOW

£ 141.99

£ 174.99

Outsunny Walk-In Greenhouse Polytunnel

  • Brand: Mhstar Uk Ltd
  • Gender: Unisex
  • Size: M

2 bought

Save 19 %!
Garden Grow 3m x 2m Walk-in Polytunnel Greenhouse

NOW

£ 89.99

£ 129.99

Garden Grow 3m x 2m Walk-in Polytunnel Greenhouse

Enhanced Planting Options. Compatible with Garden Grow's wire shelving units and seedling trays. Temperature Control. Netted windows and roll down PE covers regulate heat and humidity.
Save 31 %!
Garden Gear 2m x 2m Walk-in Polytunnel Greenhouse

NOW

£ 65.99

£ 79.99

Garden Gear 2m x 2m Walk-in Polytunnel Greenhouse

Versatile Use. Ideal for growing young plants, vegetables, flowers, and more, offering protection from harsh weather. Netted Windows. Control temperature and airflow with adjustable, netted windows.

1 bought

Save 18 %!
Outsunny Walk-In Polytunnel Greenhouse - Large Plant Nursery, 6m x 3m x 2m

NOW

£ 125.99

£ 153.99

Outsunny Walk-In Polytunnel Greenhouse - Large Plant Nursery, 6m x 3m x 2m

  • Brand: Mhstar Uk Ltd
  • Gender: Unisex
  • Size: M

8 bought

Save 18 %!
Outsunny Polytunnel Walk-in Greenhouse Oasis - Durable Storage Solution

NOW

£ 103.99

Outsunny Polytunnel Walk-in Greenhouse Oasis - Durable Storage Solution

  • Brand: Mhstar Uk Ltd
  • Gender: Unisex
  • Size: M

2 bought

Outsunny Walk-In Polytunnel Greenhouse - Verdant Green, Spacious Storage Solution

NOW

£ 67.99

£ 119.99

Outsunny Walk-In Polytunnel Greenhouse - Verdant Green, Spacious Storage Solution

  • Brand: Mhstar Uk Ltd
  • Gender: Unisex

19 bought

Save 43 %!
Outsunny Walk-In Polytunnel Greenhouse - Reinforced Steel Frame, UV-Resistant Polyethylene Cover, Spacious Garden Tool for Allotments & Home Growers

NOW

£ 208.99

£ 404.99

Outsunny Walk-In Polytunnel Greenhouse - Reinforced Steel Frame, UV-Resistant Polyethylene Cover, Spacious Garden Tool for Allotments & Home Growers

  • Brand: Mhstar Uk Ltd
  • Gender: Unisex
  • Size: M

1 bought

Save 48 %!
Outsunny Premium Reinforced Walk-In Polytunnel Greenhouse Storage Shed - Weatherproof Metal Frame, UV-Resistant, 6-Room Capacity

NOW

£ 144.99

£ 249.99

Outsunny Premium Reinforced Walk-In Polytunnel Greenhouse Storage Shed - Weatherproof Metal Frame, UV-Resistant, 6-Room Capacity

UV Resistant Cover: The selected PE cover offers excellent UV protection, ensuring the safety and health of your plants.Ample Space: This Outsunny Reinforced Walk In Polytunnel Greenhouse comes with a generous 6 room design, providing a spacious area for a variety of plants, flowers, vegetables, and fruits.

9 bought

Save 42 %!
19 x 9.8ft Walk-In Polytunnel Greenhouse Storage Shed - Galvanised Steel Frame, Weatherproof PVC Cover

NOW

£ 136.49

£ 223.99

19 x 9.8ft Walk-In Polytunnel Greenhouse Storage Shed - Galvanised Steel Frame, Weatherproof PVC Cover

Offers ample room for garden tools, equipment, and plant storage Secure Ground Anchoring. Includes four ground stakes and four guy ropes for stability Galvanised Steel Frame.
Save 39 %!
Outsunny Walk-in Polytunnel Greenhouse Storage Shed - Galvanised Steel, Weatherproof, Spacious Garden Building

NOW

£ 74.99

£ 124.99

Outsunny Walk-in Polytunnel Greenhouse Storage Shed - Galvanised Steel, Weatherproof, Spacious Garden Building

Walk in Convenience: The Outsunny Walk in Polytunnel Greenhouse provides plenty of space to navigate, making plant care and maintenance a breeze.Improved Ventilation: Equipped with roll up windows, it encourages air circulation and sunlight penetration, promoting healthier plant growth.

36 bought

Save 40 %!
120 x 120cm Mini Polytunnel Walk-in Greenhouse with Galvanized Steel Frame - Weatherproof Plant Storage & Protection

NOW

£ 32.99

£ 55.99

120 x 120cm Mini Polytunnel Walk-in Greenhouse with Galvanized Steel Frame - Weatherproof Plant Storage & Protection

Tear Resistant Mesh Cover. Shields plants from pests, harsh weather, and debris. Galvanized Steel Frame. Provides rust resistant, long lasting support for reliable protection.
Save 41 %!
Outsunny Premium Walk-in Polytunnel Greenhouse Storage Shed - Weatherproof Metal Frame, Secure Anchoring, 10ft x 7ft

NOW

£ 175.99

Outsunny Premium Walk-in Polytunnel Greenhouse Storage Shed - Weatherproof Metal Frame, Secure Anchoring, 10ft x 7ft

  • Brand: Mhstar Uk Ltd
  • Gender: Unisex

15 bought

Outsunny Walk-In Polytunnel Greenhouse Storage Shed - Galvanised Metal Frame, Weatherproof PE Cover, 6m8m, Spacious Walk-In Design

NOW

£ 105.00

£ 186.99

Outsunny Walk-In Polytunnel Greenhouse Storage Shed - Galvanised Metal Frame, Weatherproof PE Cover, 6m8m, Spacious Walk-In Design

Walk In Greenhouse: Get a walk in polytunnel greenhouse.Weather Resistant: Protect your plants from light rain and pests with the weather resistant cover.

13 bought

Save 44 %!
3m x 2m Walk-In Polytunnel Greenhouse with Waterproof PE Cover - Durable Steel Frame, All-Season Storage & Plant Protection

NOW

£ 80.99

£ 99.99

3m x 2m Walk-In Polytunnel Greenhouse with Waterproof PE Cover - Durable Steel Frame, All-Season Storage & Plant Protection

Shields plants and equipment from rain, wind, and UV rays Spacious Walk In Design. Ample room for storing garden tools, pots, and supplies Heavy Duty Steel Frame.
Save 19 %!
180 x 180cm Walk-In Polytunnel Storage Greenhouse - Durable Steel Frame, Weatherproof PVC Cover, Spacious Garden Shed

NOW

£ 48.99

£ 79.99

180 x 180cm Walk-In Polytunnel Storage Greenhouse - Durable Steel Frame, Weatherproof PVC Cover, Spacious Garden Shed

Store garden tools, pots, outdoor furniture, or seasonal equipment Easy Assembly. Includes ground stakes, guy ropes, and mounting hardware for stable setup Extended Cover Edges.
Save 39 %!
Outsunny Premium Walk-in Polytunnel Greenhouse & Storage Shelter 2.5x2x2m - Reinforced Steel, Weatherproof Cover

NOW

£ 66.99

£ 109.99

Outsunny Premium Walk-in Polytunnel Greenhouse & Storage Shelter 2.5x2x2m - Reinforced Steel, Weatherproof Cover

Sturdy Structure: Built with a reinforced steel frame, this greenhouse ensures stability and durability even in adverse weather conditions.Ventilation Windows: Equipped with multiple windows, this polytunnel greenhouse maintains proper airflow, promoting a healthier growing environment for your plants.

77 bought

Save 39 %!
Outsunny 6 x 3 x 2 m Walk-in Polytunnel Greenhouse Storage Shed - Galvanised Steel, Weatherproof, Large Capacity

NOW

£ 143.99

£ 199.99

Outsunny 6 x 3 x 2 m Walk-in Polytunnel Greenhouse Storage Shed - Galvanised Steel, Weatherproof, Large Capacity

Extended Planting Season: The Outsunny Polytunnel Greenhouse enables year round gardening, allowing you to grow vegetables and flowers no matter the season.

3 bought

Save 28 %!
Outsunny Walk-in Weatherproof Polytunnel Greenhouse Storage Shed - Powder-Coated Steel Frame, UV Protection, 1.8m x 1.8m

NOW

£ 58.99

£ 89.99

Outsunny Walk-in Weatherproof Polytunnel Greenhouse Storage Shed - Powder-Coated Steel Frame, UV Protection, 1.8m x 1.8m

Easy Assembly: The greenhouse comes with three corner and four corner joints, making it simple to assemble and get started with your gardening.Enhanced Stability: The Outsunny Greenhouse features a 10cm overlang cover design, offering additional stability and security for your indoor garden.

6 bought

Save 34 %!
240 x 120cm Galvanized Steel Walk-in Mini Polytunnel Greenhouse with Tear-Resistant Mesh Cover

NOW

£ 41.99

£ 69.99

240 x 120cm Galvanized Steel Walk-in Mini Polytunnel Greenhouse with Tear-Resistant Mesh Cover

Secure, convenient entry and ventilation Tear Resistant Mesh Cover. Shields plants from pests, weather, and debris
Save 40 %!
Outsunny Deluxe Polytunnel Greenhouse

NOW

£ 104.99

£ 169.99

Outsunny Deluxe Polytunnel Greenhouse

  • Brand: Mhstar Uk Ltd
  • Gender: Unisex

3 bought

Save 38 %!
Spacious Walk-in Polytunnel Garden Greenhouse

NOW

£ 70.99

£ 164.99

Spacious Walk-in Polytunnel Garden Greenhouse

  • Brand: Mhstar Uk Ltd
  • Gender: Unisex

76 bought

Save 57 %!
Large Walk-In Polytunnel Greenhouse - UV Resistant, Weather-Proof, 13 x 9.8ft Garden Growhouse

NOW

£ 95.49

£ 175.99

Large Walk-In Polytunnel Greenhouse - UV Resistant, Weather-Proof, 13 x 9.8ft Garden Growhouse

Easy Access: Three roll up doors and six mesh windows for ventilation. Flexible Layout: Open interior lets you arrange plants your way.
Save 46 %!
Outsunny Deluxe Polytunnel Greenhouse - Large Outdoor Tunnel, UV-Protected, Sturdy Steel Frame, 3.9m x 3m, Family Garden Fun

NOW

£ 118.99

£ 319.99

Outsunny Deluxe Polytunnel Greenhouse - Large Outdoor Tunnel, UV-Protected, Sturdy Steel Frame, 3.9m x 3m, Family Garden Fun

  • Brand: Mhstar Uk Ltd
  • Gender: Unisex
  • Size: M

5 bought

Save 63 %!

Transform your garden into a thriving growing space with our exclusive selection of polytunnel garden greenhouse solutions. At Wowcher UK, we understand that every gardener deserves more growing time, better protection from the elements, and a flexible space to nurture seedlings, protect crops, and extend the growing season.


Imagine stepping into a dedicated growing area that shields plants from frost, wind, and heavy rain while maintaining light, warmth, and humidity ideal for thriving vegetables, herbs, and ornamentals. Our range blends durable frames with clear, UV-stable coverings to deliver dependable performance year after year.


Unbeatable Deals on Online Polytunnel Garden Greenhouses


Discover special offers on polytunnel garden greenhouse kits and add-ons designed to suit beginner gardeners and seasoned growers alike. Our curated deals help you get the most value without compromising quality or practicality.


From compact tunnel options for patios to larger walk-in styles that become a summer-to-winter growing room, Wowcher UK brings you affordable, reliable solutions for every garden size and climate.


What to Consider When Choosing a Polytunnel Garden Greenhouse?


First, assess your space. Measure available ground area and consider access for maintenance, watering, and harvesting. A polytunnel that fits your garden footprint will be easier to manage and more enjoyable to use.


Frame material matters. Options range from galvanized steel for durability to lighter aluminium for portability. Look for corrosion resistance and sturdy anchoring to withstand wind loads in your area.


Covering is crucial. Clear polyethylene film provides high light transmission and cost-effectiveness, while polycarbonate panels offer extra insulation and impact resistance. Ensure UV stabilization to protect plants and extend the life of the structure.


What Are the Most Popular Types of Polytunnel Garden Greenhouses?


Single-span tunnels are ideal for tight spaces, offering straightforward setup and good airflow. Multi-span or walk-in greenhouses provide a larger growing area, integrated shelves, and enhanced ventilation for warmer climates.


Compact polytunnel kits with end panels are perfect for beginners who want a simple start, while premium models with auto-vent windows and integrated shade options suit experienced gardeners seeking climate control.


How to Maintain and Use a Polytunnel Garden Greenhouse?


Regular checks ensure seals stay intact and airflow remains balanced. Clean covers to maximise light transmission, inspect zippers or tapes for wear, and replace damaged panels promptly to maintain an efficient growing environment.


Ventilation is essential. Use roof vents, side vents, or automatic vent openers to prevent humidity build-up and to reduce the risk of fungal diseases. Pair ventilation with a simple irrigation plan for consistent moisture throughout the growing season.


To maximize uptime, add ground anchors, sturdy pegs, and a reflective ground cover to control weed growth and help warm the soil earlier in spring. In your Wowcher cart, combine a polytunnel with seed trays, shelving, and a drip irrigation kit for a complete setup.


What Accessories Are Useful for a Polytunnel Garden Greenhouse?


Shade cloth helps manage intense sun, while reflective mulches boost light distribution to lower-growing crops. Auto-vent systems and heater or fan options extend the growing season into cooler months. Shelving, potting benches, and hose reels keep your setup tidy and efficient.


Consider floor options, such as heavy-duty ground sheeting or insulated bases, to improve heat retention and keep weeds at bay. With Wowcher UK, you’ll find a wide range of accessories designed to complement your polytunnel garden greenhouse and fit your budget.


How to Install a Polytunnel Garden Greenhouse?


Site preparation is key. Clear the area, level the ground, and mark anchoring points. Follow manufacturer instructions for staking and securing the frame, then fit the cover tautly to avoid flapping in wind. Check doors and zips for smooth operation before loading in plants and soil.


If you’re new to polytunnel gardening, start small and expand as you gain confidence. Our Wowcher listings include easy-to-assemble kits with clear guides, making it feasible to create a productive space in a weekend.


How to Extend Growing Seasons with a Polytunnel Garden Greenhouse?


A polytunnel provides protection from late frosts and cooler nights, enabling early sowing and late-season harvesting. Use black-out or shade fabrics for extreme heat, and stagger sowing times to keep a steady harvest through spring and autumn.


Pair the structure with a simple heat source, such as a compact heater or floor-witted radiant system, and an efficient irrigation setup to prevent water stress during dry spells. With good drainage and proper venting, your polytunnel garden greenhouse can support year-round gardening.


What Should I Look for When Choosing a Polytunnel for My Garden?


Key considerations include climate suitability, wind exposure, ground conditions, and your preferred level of automation. Check warranty terms, availability of replacement parts, and the ease of access for ongoing maintenance. A well-chosen polytunnel will grow healthier plants and save time on routine care.


Whether you’re growing salads, tomatoes, peppers, or ornamental blooms, a sturdy polytunnel garden greenhouse from Wowcher UK brings your garden to life, delivering better yields, longer growing seasons, and more enjoyment from your outdoor space.