April is a busy month with much to do. Be warned,
there will still be frosts around,
so do not put tender plants
Lawns should now be growing quite strongly. (Warmer weather - April Showers) Mow when necessary - with the blades set high. Don't forget, that if you only get a chance to mow the lawn at the weekend, and you give it a miss for one week, it will have a further week's growth by the following weekend. More important, if it rains then and you can't cut it, it will be weeks before you manage to get it under control and looking good.
Sow new lawns or lay turf on ground prepared last month. Established lawns will need attention after all the rain - and of course April can also be a wet month - in which case keep off the lawn unless necessary. Aerate, apply a lawn sand or a selective weed killer and fertiliser and scarify about two weeks later to remove patches of dead moss. Where necessary over-seed. (If you have been troubled by worm casts the use of lawn sand each year will help to reduce them.)
Cut back all
heathers that have finished flowering. Dead-head
spring flowering bulbs when they have finished
flowering, but do not cut down the leaves.
Prune forsythia after flowering. Prune Ribes - Flowering Currants - after flowering. Both can be cut back as hard as you like, as long as you do it right AFTER flowering. This then gives them enough time to produce new flowering wood ready for next year.
throughout April to get them off to a good start. Continue sowing hardy annual
seeds in beds and borders. Plant alpines in rock garden. Plant out dahlia tubers
towards the end of the month.
Transplant rhododendrons, azaleas and other evergreens
that need moving. April is the best month for moving
evergreens. Shelter them against drying winds after
If you haven't already done so, then cut back Buddlejahs (Buddleias) and Dogwoods (Cornus). April is the latest you should be doing this, but if you miss out, then May is still ok. The former to ensure arching sprays of larger flowers, and the latter, to give masses of colour next winter. (You really have to think that far ahead in this game.)
Buddleja Highland Blue Cornus sibirica
Links at bottom of page on how to do it!
gooseberries with a fungicide against mildew. Continue
to sow vegetables.
Plant main crop potatoes now and 'earlies' if not done last month. Continue to plant onion sets, shallots and garlic. Erect supports for runner beans in readiness for sowing - or planting out.
Keep on top of
whitefly before they multiply. Spray
regularly for 3 weeks at 10 day intervals, to break
their natural reproductive cycle.
Spray regularly for 3 weeks at 10 day intervals, to break their natural reproductive cycle.(If they become troublesome, you can always 'suck them up' with a portable 'car vac'. It works! - GS Editor)
Once you have done all the work required in April, then the garden work should be easier in May