Watch out for late frosts. Protect tender plants
Earth up potatoes, and promptly plant any still remaining
Plant out summer bedding at the end of the month (except in cold areas)
Water early and late to get the most out of your water, recycle water when possible
Regularly hoe off weeds
Open greenhouse vents and doors on warm days
Mow lawns weekly – but consider leaving some areas uncut for wildlife
Check for nesting birds before clipping hedges
Lift and divide overcrowded clumps of daffodils and other spring-flowering bulbs
Watch out for viburnum beetle and lily beetle grubs
Find out what to do this month with our gardeners' calendar
The RHS is the UK’s gardening charity, helping people and plants to grow - nurturing a healthier, happier world, one person and one plant at a time.
