Apply a spring lawn feed. Use a combined product containing moss killer, weedkiller and fertilizer. Use a spreader to apply feed. Or apply a liquid feed.
Before you apply the Spring lawn feed cut the lawn, set the blades slightly higher for first cut, remove loose grass from lawn.
Formative pruning of plum and cherry trees can start once leaf buds open.
End of the month plant out dahlia tubers.
Plan to plant gladioli corms in the garden for summer flowering. Place the corm on 1 inch of grit to provide extra drainage. Label to indicate where planted.
Plant new asparagus beds.
Begin to earth up early potatoes when they have made 3 inches of growth.
Spray roses with a biological fungicide if blackspot is a problem. Repeat every few weeks. Feed also with granular fertiliser.
Continue to sow beetroot, carrots, summer cauliflower, radish, spring onions, peas and perpetual spinach. If the weather turns hot, water with a fine rose this will prevent the seeds from growing too quickly (bolting) and not developing naturally.
And finally, do not purchase summer bedding plants until middle/end of May unless you have a greenhouse to protect from late frost.