If you don't have room for a greenhouse, but want to grow under glass, a mini greenhouse is the ideal way to extend the growing season. There's a variety of sizes, prices and styles, so you're sure to find one that suits your space and wallet.

So what is a mini greenhouse?

There's several categories, each with their pros and cons:

A tomato house (mini growhouse or growhouse) is cheap, made from push-together steel framework covered by a uPVC zipped cover. However, they're light and can blow away. Shelves can also bow under weight, so these are best for growing a small number of tomatoes in sheltered areas.

An aluminium or wooden-framed mini greenhouse is more expensive, usually catering for one growbag. Despite their small size, they are strong, can be fixed to walls and are adaptable, with shelving and a top glazed lid.

A cold frame is excellent for hardening off crops. Lighter versions are great for warming soil in spring. Heavier wooden t

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