Perennials can be started from seed, but sow deeper than normal.
Radishes and carrots can still be planted for a fall crop.
Fertilizing
Continue to feed lawns every six weeks. Use a weed and feed for broadleaf weeds.
Give roses and blooming plants one last feeding so they will harden off before winter.
Watering
Continue deep watering. Plants will need extra water during hottest weather. Rhodies
and Hydrangeas growing in the sun can be cooled down by sprinkling them in the
afternoon.
Pruning
Cut off old flowers to encourage repeat blooming.
Pruning overgrown deciduous trees and shrubs in the summer will slow down their
growth the following year.
This is the last chance to prune hedges and still have some new growth to hide the
cuts.
Spraying
Continue to spray for leaf spot diseases and powdery mildew if plants are watered by
overhead sprinklers.
Spray rhododendrons twice a month through August for root weevils if the leaves have
notches on the edges.
Spider mites are a serious problem on arborvitae and needle leaf evergreens during
hot weather. Spraying once a month makes them worse. Apply two miticide sprays a
week apart. Hosing down the plants once a week with plain water also helps.
