As the garden season is winding down, following are a few suggestions on “Gardening in August”:
Quit fertilizing rose bushes, shrubs and trees after August 15th.
Start dividing flowers that need it, i.e. irises, hostas, daylilies, grasses, etc.
Continue watering evergreens until a hard freeze.
Continue weeding your garden.
Continue deadheading flowers that will continue to bloom.
Remove deceased plants from your garden.
If the annuals in your planters are wore out, consider replacing them with fall mums.
Harvest your herbs.
Before winter, remove all diseased debris and broken branches from your flower garden. Discard any remaining annuals.
Recommended perennials to cut back in fall are: bearded iris; monarda (bee balm) unless it is new growth; gaillardia (blanket flower); nepeta (catmint); columbine; daylily (now or spring); bush clematis; helianthus; hollyhock; ligularia (now or spring); penstemon; peony; and helianthus.
These perennials are recommended to leave for spring cutting: asclepias (butterfly weed); chrysanthemums (mammoth mums); and heuchera (coral bells).
Birds will appreciate it if you leave echinacea (cone flowers) and rudbeckia (black-eye Susans) or any other seed producing plants standing through winter.