Sparingly scatter some winter lettuce seeds on damp multi-purpose compost in a pot or container which fits on your window ledge. Don’t sow the whole packet, a third will be plenty, cover the seeds with a little more compost, be kind and remember to water. Lettuce is quick to grow and shoots will appear soon. Provided the temperature is constant you will be picking lettuces in 6-8 weeks. Choose a winter lettuce variety, for example All Year Round, Winter Gem or a packet of mixed winter leaves. If you have enough space, find a few more pots and sow more seeds every 4 weeks this is called successional sowing and ensures you have a constant supply of salad leaves all winter.
If you are interested in growing vegetables, Parkers-Patch runs courses throughout the year to help you and your vegetables grow big and strong.