Seasonal Tips for July

  • Cut back delphiniums and geraniums after the first flush of flowers to encourage a second flowering period.
  • These and late flowering border perennials will benefit from a top dressing of quick acting organic feed such as Sulphate of Potash.
  • Liquid feed containerised plants with Tomorite to keep flowering throughout summer.
  • Mulch borders to retain moisture and prevent weeds. 2-3 inches depth works best.
  • Roundup weedkiller is most effective when the weeds are in active growth. A good glyphosate free alternative is Neudorff Longlasting Weedkiller
  • Prune June-flowering shrubs now. Look out for:
  • Scale insect on bay trees. Small oval bumps under the leaves. Organic sprays such as SB Plant Invigorator give some control if applied weekly. For more persistent infestations use Provanto ultimate bug killer.
  • Asparagus beetle is also active stripping the bark – use an organic spray such as Bug Clear for Fruit and Veg.
  • Greenfly and blackfly on young shoots. A regular spray of SB Plant invigorator will provide non-toxic control.
  • Aphids and black spot control with Rose Clear.
  • Powdery mildew can occur in dry weather. Mulch plants to keep moist. Spray with Fungus Clear.
  • Inspect lilies for the scarlet lily beetle and spray with an organic spray such as Vitax Plant Guard or SB Plant Invigorator.
  • Sow spring cabbage, chard and winter spinach.
  • Plant winter cabbage plants.
  • Give the lawn a quick-acting summer feed.
  • Give woodwork a coat of preserver while the weather is dry.