Seedlings - Plant Care - Garden Care - Bayer Garden

April planner


What to do in your garden in April.

What to do in your garden in April.

Maintain

  • Pick off dead blooms from spring-flowering bulbs but leave the foliage to die down.
  • Divide mature clumps of daffodils.
  • Lift and divide overcrowded water lilies, replanting in specialist compost in baskets.
  • If you have a pond, beware of blanket weed that can thicken up very fast in spring, choking fish. Lift it out of the water by swirling trails of it around a broom handle.
  • Deadhead camellias.
  • Give the lawn a boost after winter at the end of the month by raking, weeding and feeding before giving it a first mowing of the year.
  • Encourage new growth of ferns in shady places that tend to be dry by watering and mulching.

 

Prune

  • Prune winter-flowering jasmine.
  • Trim winter-flowering heathers, cutting back just below the faded flowers.

 

Prepare

  • Harden off bedding plants by bringing them outside when the weather is warm.

 

Protect

  • Protect vulnerable young shoots of emerging plants from slugs and snails.
  • Give support with stakes or circular hoops to emerging perennials now so you don't have to prop them later. The best option is a support frame that you place over clumps so the plants grow through them, soon camouflaging them completely with foliage.
  • Hang up sticky traps to control greenfly in greenhouse.
  • Cover strawberries with cloches to encourage earlier flowers and fruits.

 

Grow

  • Sow vegetable seed directly into the ground, including cabbage, carrots, cauliflower, salad leaves, spring onions, radishes, peas as well as mange touts and sugar snaps and beetroot.
  • Sow salad leaves including mustards and rocket in the open ground or planters. For quick crops, sow cut-and-come again leaf mixes.
  • Sow flowering annuals in spare patches of ground, including decorative edibles such as nasturtium, borage and marigold.
  • Sow sunflowers directly in the garden.
  • If you don't have time to sow vegetables from seed, consider buying plug plants that just need planting out to get growing.
  • Sow sweet corn in the greenhouse.
  • Pot up plugs of bedding plants for planting out next month or in June when frost danger has passed.
  • Sow broad beans in the ground this month and next, for a later crop, or plant out beans from earlier sowings made under cover.

 

Plant

  • Plant up trailing tomatoes with basil in hanging baskets and keep in a sheltered spot or greenhouse until frost danger has passed.
  • Plant kitchen herbs in pots and keep by the back door in a sunny spot. The main contenders that will continue for some years include rosemary, thyme, oregano and sage.
  • Mint is best in a pot because it becomes invasive in the ground, swamping other plants. Moroccan mint is best for tea; apple and pineapple mint, with furry leaves, is best for decorating desserts.

 

Treat

  • Scatter Toprose around the base of shrubs and roses.
  • Keep on top of weeds, pulling them out between paving stones and sets with a designated metal tool and then apply Glyphosate ready to use to keep them at bay.