Last of the Spring months!
The gardens awakening is evident as we see temperatures rise and so a new host of gardening opportunities present themselves in April. Our April gardening tips will set you on your way!
Plant dormant dahlia tubers 10cm (4in) deep outdoors at the foot of support stakes.
Keep an eye out for slugs and take steps to control them. Use Slug traps or Bird Friendly Slug Pellets
Plant summer flowering bulbs outdoors e.g. Gladioli etc.
For trouble free roses, without harming beneficial insects, treat them every 10 days with Multirose concentrate. A combined pest and disease treatment. Alternatively use an organic pest control and one application of Bordeaux Mixture now.
Prune Forsythias and Winter Jasmine after flowering.
Straggly silver foliage plants can be cut back now e.g. Saintolina. (but not down into old wood – that is risky).
Plant Asparagus crowns and Jerusalem artichokes.
Treat potted ornamental plants with Bio Provado Vine Weevil Killer 2, as it acts as both a control measure and an insurance policy. One treatment lasts 4 months.
Cover some established strawberry plants with cloches to get an early crop.
Plant new conifer hedges and trim established ones.
Dead head daffodils and narcissi when flowers are faded – feed them but DO NOT cut off the foliage.
Tackle pernicious weeds, like bindweed, with a systemic weed killer containing glyphosate.
Hardy annuals can be sown now in situ outdoors.
Undertake lawn renovations by repairing damaged edges and removing bumps and hollows.
Take conifer cuttings. Pull off 7.5 – 10 cm (3-4in) side shoots. Trim up the base. Dip in hormone and insert in free draining compost.
Watch out for attacks of gooseberry mildew and gooseberry sawfly attacks, these devastate bushes.
Plant out cabbage, cauliflower, Brussels sprout and celery plants.
Finish planting sprouted maincrop potatoes.
Sow tomato seeds indoors now for outdoor planting in June.
Begin planting up hanging baskets, keep them inside until frost risk is minimal.
Check your greenhouse regularly, as watering, shading and ventilation are important.
Sow Basil indoors, but do not plant outside until there is no risk of frost.
Sow tender veg. Indoors for planting out next month e.g. Courgettes, French and Runner beans.
Prune early flowered Clematis after blooming e.g. C. Alpina and C. Macropetala. This is only necessary where space is limited.
This is a good time to re-pot any houseplants that are pot bound.
Store unused seeds left in open packets in an airtight container in the refrigerator.