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in the year, to encourage them to put on growth before winter sets in. Space them at 10cm intervals in rows 20cm apart, and water well. If you don't have seedlings to plant out, you can usually buy plug plants from garden centres and mail order companies
Plants are able to make their own food by capturing the energy from sunlight to convert carbon dioxide and water into sugar. But in order to stay healthy and give the best results they take additional nutrients out of the soil or compost, so it
to its proper place in the greenhouse.More on greenhouse gardeningAdvice on gardening under glass.How to fit an automatic greenhouse vent opener.Learn how to sow seeds indoors.Browse our collection of tender plants.