Things to Do This Month

June

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.

Lawns

  • 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.

Miscellaneous

  • 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.

July

Ornamental Annuals and Perennials

  • Continue to treat roses and susceptible tall garden phlox with fungicide every two weeks to control foliar diseases. Don’t spray when temperatures exceed 80 degrees F.
  • Make final pinch of mums before July 15th.
  • Divide bearded iris this month.
  • Deadhead perennials after flowering for a neat appearance, and deadhead annuals that require it for continued bloom.
  • Water container gardens daily as required, and fertilize weekly with water soluble plant food.

Lawns

  • Water frequently enough to prevent wilting. Early morning irrigation allows turf to dry before nightfall and will reduce the chance of disease.
  • Monitor lawns for newly hatched white grubs. If damage is occurring, apply appropriate controls, following product label directions.

Trees and Shrubs

  •  Keep watering newly planted trees and shrubs as needed.
  • To propagate spring flowering shrubs, take semi-hardwood cuttings now.
  • Spray hollies for leaf-miner control.
  • Watch for spider mite damage on susceptible plants. Look for speckled, yellowing foliage, and in severe infestations, silky webbing.

Fruits and Vegetables

  • Mulch tomatoes and peppers and water when soil begins to dry to prevent blossom-end rot.
  • Set out transplants of cool-season crops such as broccoli, cabbage and cauliflower.
  • Sow seeds of carrots, collards, kale, radishes and turnips.
  • Spray second treatment for peach tree borers.

Miscellaneous

  •  Shop the garden centers for midsummer bargains.  Think tropicals and water garden plants! No matter how cheap, avoid damaged, diseased or stressed plants. Perennials, trees and shrubs also can be planted now or healed in temporarily for fall planting. Be sure to monitor and water as needed.

August

Ornamental Annuals and Perennials

  • Continue to treat roses and susceptible tall garden phlox with fungicide every two weeks to control foliar diseases. Don’t spray when temperatures exceed 80 degrees F. Discontinue fertilizing after the 15th.
  • Order spring-flowering bulbs now for fall planting.
  • Divide bearded iris now, discarding rotted or borer damaged parts.
  • Deadhead perennials after flowering for a neat appearance.
  • Cut back annuals as they become leggy, then fertilize for new flush of bloom.
  • Water container gardens daily as required, and fertilize weekly with water soluble plant food.

Lawns

  • Look for grub damage and apply controls if needed.
  • Apply final fertilization to zoysia lawns.
  • If planning a total lawn renovation in fall, apply Round-Upâ now.

Trees and Shrubs

  •  Keep watering newly planted trees and shrubs as needed.
  • Plant new evergreens or transplant now to ensure adequate root development before winter.
  • Discontinue any pruning of boxwoods, yews and hedging after this month.
  • Watch for bagworms on susceptible evergreens, and handpick to control.
  • Watch for fall webworm activity, though control isn’t required.

Fruits and Vegetables

  • Start planting lettuce and radishes for fall.
  • Sow seeds of spinach, beets, beans, and turnips.
  • Spray peaches and other stone fruit to protect against borers.
  • Cultivate strawberries. Apply weed preventers after fertilizing.

Miscellaneous

  • Keep hummingbird feeders changed and cleaned as birds begin migrating through area.
  • Clean and repair cold frames for fall use.

 

For more gardening tips for this month, go to

Kemper Center for Home Gardening Garden Calendar