Jobs to be doing this month include:

Ornamental Garden:

  • This month is a fast period of growth. Late frosts may catch early blooms and soft growth – remove any damaged growth.
  • Spray roses with rose clear or similar.
  • Weed
  • Continue to remove spent flowers of spring bulbs but not the foliage until it has withered and yellowed.
  • Chelsea-chop time – If the Nepeta and Sedums are looking leggy then cutback by a third to encourage compact growth that will not collapse later in the season. This can be applied to the lavender, echinops, Echinacea, aster, helenium and salvia too if felt necessary.
  • Trim Rosemary, Thyme and Sage if not done in April.
  • Cutback withered daffodil or tulip stems once they have turned yellow.
  • Trim grass edges of borders regularly to keep neat and tidy.
  • Prune spring flowering clematis
  • Stake and support herbaceous perennials if necessary
  • If daffs gave a poor show lift and divide bulbs and replant.
  • Continue deadheading spring bulbs.
  • Start hardening off tender plants for planting out.

Veg Garden:

  • Harvest Asparagus
  • Direct sow french beans and sweet corn if weather is warm enough
  • Start earthing up potatoes
  • Harvest early crops such as radish / lettuce etc.
  • Refrain from planting tomatoes too early as they suffer if exposed to temperatures below 12 degrees.
  • Sow pumpkins, cucumbers, courgettes, squashes under cover now and outdoors towards the end of the month.