Stop deadheading in early September if you want seeds to mature for "self-seeding" next spring.
Divide iris in late July; divide peonies and daylilies in August.
Pinch chrysanthemums and perennial asters for the last time right now.
Monitor for bagworms on arborvitae, cedar and juniper. Hand-pick to remove "bags" which may contain the eggs of this pest.
Watch for tomato hornworms; hand-pick these large caterpillars off the plants.
Visit a local farmers market. Here's a great list from the Bucks County Foodshed Alliance! http://goo.gl/X3qZzF
Make some space for a fall garden of lettuce, beets, chard, cabbage family plants, and radishes.
Continue adding "greens and browns" to the compost bin and adding water during hot days to keep the pile moist.
Select spring-blooming bulb varieties to order from catalogues, or purchase locally, to plant this fall.
Stop fertilizing and deadheading roses in late August. Dead or diseased canes may be removed now but major pruning is done in the spring.
