Things to Do This Month


Ornamental Annuals and Perennials

  • Place tropical water lilies in water gardens.
  • Fertilize roses with a balanced fertilizer.
  • Spray roses with fungicide every two weeks to control black spot, powdery mildew and other fungus diseases.
  • Check containers daily for soil moisture, and water as needed. Fertilize weekly with water soluble fertilizer.


  • Water as necessary to prevent drought stress. Heavily irrigated lawns are more attractive to grub-laying Japanese beetles, however.
  • Gradually raise lawn mower deck for zoysia grasses as summer progresses.
  • Mow frequently during periods of rapid growth to remove no more than 1/3 of turf height.
  • Avoid using herbicides when temperatures exceed 80 degrees F.

Trees and Shrubs

  • Monitor evergreens and other trees and shrubs for bagworms.
  • Fertilize trees and shrubs, if needed.
  • Take softwood cuttings now to propagate favorite trees and shrubs.
  • Prune spring-flowering trees and shrubs.

Fruits and Vegetables

  • Monitor vegetable garden for pests. Early detection and control prevents more serious infestations.
  • Plant pumpkin seeds now.
  • Control cucumber beetles and squash vine borers with a regular spray schedule, beginning when vines start to run.
  • Make sure tomatoes receive consistent water supply to avoid blossom end rot.


  • Freshen water in birdbaths regularly and check for standing water around the home and garden where mosquitoes can lay eggs.
  • Make sure houseplants are protected from afternoon sun.


For more gardening tips for this month, go to

Kemper Center for Home Gardening Garden Calendar