Gardener’s To-Do List for August

Here’s a zone-by-zone to-do list for the month of August.


If you don't know what USDA hardiness zone you live in, check the map here to find out.

August To-do list for zone 3August To-Do List for Zone 3

  • Harvest time! If you're saving seeds, save only healthy ones, and make sure they have thoroughly dried. Clearly label seed storage containers.
  • Pick zucchini when fruit are 4 to 8 inches long—you'll get twice as many.
  • Spray water on the top and undersides of zucchini foliage, early in the mornings, to control spider mites and aphids.
  • After midmonth, pinch off any new tomato flowers to direct energy to ripening fruit.
  • Slowly reduce watering of perennials, trees, and shrubs to allow them to harden-off for the winter.
  • Be prepared to protect plants from early frost.
  • At month's end, take cuttings of geraniums, fuchsias, and begonias. Root them in damp perlite.