The risk of frost is becoming less and the gardens are filling with colour. Still be wary of putting out tender plants and vegetables - ‘Never cast a clout until May is out’.
Feed existing lawns with a granular or liquid feed. Use a combination feed and weed-killer if weeds are an issue.
Seed new lawns if the weather isn’t too dry.
Mow the lawn regularly, but not when there is a frost on the ground.
Lay new turf if the ground isn’t too dry and water if the weather warms up too much.
Use a spot weed-killer if a general one hasn’t been used.
Prune spring flowering shrubs like Forsythia to prevent them from getting too big. A lot of spring flowering shrubs will flower on the previous years growth so to keep the flowers at a visible height now is the time to prune them.
Sow hardy annuals if not already done.
Plant out summer bedding and basket plants towards the end of the month once the risk of frost has passed.
Support herbaceous perennials as they grow. Plant stakes or canes and string can be used.
Clear out spring bedding and feed beds ready for summer bedding.
Many vegetable plants can be planted outside now.
Tomatoes and Courgettes can be planted outside in containers or the ground at the end of the month.
Plant out Maincrop potatoes and start to harvest early potatoes.
Sow parsnips, carrots, beetroot etc directly into the ground.
Mulch strawberry plants with straw or black polythene to prevent fruits from sitting on the ground and spoiling.
Pick off and destroy any leaves showing signs of Peach Leaf Curl.
Spray Gooseberries with a fungicide if mildew becomes a problem.
Harvest early Rhubarb stems.
Keep an eye out for pests and diseases.
Water newly planted plants during dry spells.
Keep on top of weeds.
Keep an eye out for slug damage on young plants and treat accordingly.