What to do Now / June

Gardening Advice

What to do Now / June

  • Lift and store tulip bulbs after flowering
  • Give wisteria its summer prune, cutting all the long sideshoots back to 20cm, to promote flowering next spring
  • Plant up a new tropical display with tender exotics, including bananas, ricinus, coleus, cannas and amaranthus
  • Support tall-growing perennials, including hollyhocks and delphiniums, with a sturdy cane
  • Continue planting summer bedding in pots and borders, and water regularly to help plants establish quickly
  • Plant out sweetcorn after hardening off, arranging plants in blocks to aid pollination
  • Cover developing and ripening fruits with netting or fleece to protect them from birds
  • Enjoy the last harvests of asparagus this month, then leave the ferny top-growth to grow up over the summer
  • Spread mulch around thirsty crops such as beans and courgettes to hold in moisture around their roots
  • Check for woolly aphids on fruit trees, and treat infestations with soap-based spray
  • Sow herbs in pots to grow on your kitchen windowsill, such as coriander, parsley and basil
  • Plant out tender vegetables raised indoors, including beans, tomatoes, pumpkins, courgettes and sweetcorn
  • Put houseplants outside for the summer in a warm, sheltered spot to enjoy the fresh air and extra light
  • Pinch out the sideshoots of cordon tomatoes regularly
  • Harden off hanging baskets and pots of summer bedding that have been growing in the greenhouse
  • Empty, mix and refill compost bins to speed up decomposition
  • Spray roses showing signs of disease, such as blackspot, powdery mildew or rust
  • Continue watering any new plantings until they're well established
  • Water newly laid turf several times a week, for at least the first month
  • Trim fast-growing hedges, such as privet, every six weeks over the summer
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