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Sow a new lawn or re-seed dead patches from mid-April to early May. But if the soil is very wet or cold, germination will be poor, so delay until the weather improves. Prepare the ground for sowing by forking over, weeding, levelling and lightly firming.
Avoid walking on or mowing newly sown grass until it has reached 5–8cm (2–3in) tall. Even then, only give it a light trim, with the blade at the highest setting.
Sow a wildflower meadow or plant wildflower plugs into existing lawns.
See our video guide to creating a new lawn.
If moss is a problem (usually only in damp, poorly drained lawns) and you want to get rid of it, try removing with a spring-tined rake first. If that isn’t successful, you could apply a chemical moss killer, then rake out the debris after a couple of weeks. See our guide to moss in lawns.
See all our lawn care advice.
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The Royal Horticultural Society is the UK’s leading gardening charity. We aim to enrich everyone’s life through plants, and make the UK a greener and more beautiful place.