Best Greenhouses & Cold Frames — Wood + Balcony/patio (2026)
1 greenhouses & cold frames matching material “Wood” + best for “Balcony/patio”, hand-picked from UK Amazon listings.
Not sure which one to pick? Read our Best Greenhouse UK (2026) guide.
#1 Pick
Selections Wooden Framed Polycarbonate Cold Frame Growhouse- Wood
- Balcony/patio
- 1 Year
£37.98
Pros
- Wooden frame with polycarbonate glazing
- Great for hardening off seedlings
- Compact footprint for patios
Cons
- Not tall enough for mature plants
This collection focuses on wooden greenhouses and cold frames specifically designed to enhance your balcony or patio space. We've curated a selection of robust, weather-resistant models that offer a practical solution for cultivating plants even in smaller outdoor areas. These structures are built with longevity in mind, featuring durable wood construction suitable for UK climates.
Perfect for extending the growing season, these wooden greenhouses and cold frames provide protection from harsh winds, rain, and frost. They’re ideal for starting seeds early or protecting delicate seedlings, allowing you to enjoy a wider range of plants throughout the year. Each frame is designed with ventilation in mind to maintain optimal temperatures and humidity levels for healthy plant growth.
When choosing your wooden balcony/patio greenhouse, consider the size of your available space and the types of plants you wish to grow. Ensure the structure’s design complements your existing outdoor décor. Remember to factor in ground preparation and appropriate drainage when setting up your new growing environment – a solid foundation is key to success.
FAQ
What kind of wood are these greenhouses made from?
Typically, you'll find wooden frames constructed from pressure-treated pine or seasoned hardwoods like redwood or teak. Pressure-treated pine offers excellent value and resistance to rot, while hardwoods provide superior durability and a more premium aesthetic.
How do I protect the wood from weathering?
Regular maintenance is crucial. Apply a weatherproof sealant every 12-18 months to protect the wood from UV rays and moisture. Clean the frame with mild soapy water before applying sealant, and ensure proper ventilation within the greenhouse.
What size should I choose for my balcony?
Measure your balcony space carefully – length, width, and height are important. Smaller cold frames (60cm x 60cm) are suitable for herbs and seedlings, while larger greenhouses (120cm x 120cm or larger) can accommodate a wider range of plants.
Do I need to build a base for my greenhouse?
While not always essential, building a small wooden base elevates the frame slightly off the ground, improving drainage and airflow. A simple platform constructed from treated timber is often sufficient.
What tools will I need to assemble it?
Assembly typically requires basic hand tools such as a hammer, screwdriver (Phillips head), and potentially a saw for minor adjustments. Most manufacturers provide clear instructions and all necessary fixings.
How much sunlight does a wooden greenhouse need?
Most plants require at least 6 hours of direct sunlight per day to thrive. Position your greenhouse in the sunniest spot on your balcony or patio to maximize light exposure, considering any obstructions like buildings or trees.
Can I use this greenhouse for tropical plants?
While these greenhouses can be used for tropical plants, careful ventilation is crucial to prevent overheating and humidity build-up. Monitor temperatures closely and provide adequate airflow to avoid issues.
What’s the best soil mix for my wooden cold frame?
Use a good quality seed starting or potting mix that drains well. Avoid heavy clay soils, as they can retain too much moisture and lead to root rot. Adding perlite or vermiculite improves drainage.
How do I winterize my wooden greenhouse?
Remove all plants before the first frost. Clean the frame thoroughly and apply a thicker layer of sealant. Consider covering the frame with a protective cloth to shield it from snow and wind damage.
Are these greenhouses suitable for growing vegetables?
Absolutely! These wooden cold frames and greenhouses are perfectly suited for starting vegetable seedlings early in the season, or protecting established plants from frost and pests. They offer a controlled environment ideal for cultivating various edible crops.