Things to do in June
Fertilize annuals with 1 cup of balanced fertilizer per 100 sq.ft. Rich compost, manure tea and fish emulsion are some organic options. Yellowing leaves near the tip of plant shoots indicate a lack of iron. Check soil pH and treat with an iron supplement, if needed. Feed roses and young fruit trees with a nitrogen fertilizer. Feed established annuals and perennials with a high nitrogen/low phosphorus fertilizer such as 15-5-10.
Water all planted areas deeply but infrequently during dry periods. Water outdoor potted plants daily.
Mow every 5-7 days, leaving the clippings on the lawn. Raise mower setting to reduce stress to turf in summer. Water during the cool of early morning. Avoid weed killers now that temperatures are above 85°.
Diseases/Pests To Look For:
Watch for chinch bugs in the sunny areas of your lawn, especially near streets and driveways. Call the Extension Service for recommended treatment. Webworms and other caterpillars can be treated with Bacillus thuringiensis (Bt). For scale insects, mealy bugs and spidermites use summer oil or horticultural oil.
Remove spent flowers from daisies, daylilies, cannas and other summer flowers. Remove fruiting canes from blackberries after harvest. Tip prune new canes at 4’ to promote branching. Prune dead and damaged wood from trees and shrubs as needed. Cut geraniums back and place in light shade. Do not prune oak trees at this time since the beetle that carries oak wilt is active now and may be attracted to any cuts you make.
Things To Plant In June:
Start transplants indoors for fall tomatoes, peppers and eggplants.
Other Things To Do:
Prepare fall garden beds. Remove old winter vegetables and strawberry plants from beds. Replenish mulch.