Timely Garden Tips For September

  • Start to divide herbaceous perennials as the weather cools. Make sure you water in the new divisions well.
  • Begin planting fall annuals like pansies, ornamental cabbage and kale, chrysanthemums, dusty miller. If you want to enjoy your summer annuals a little longer, keep deadheading them to extend their performance.
  • September is a good time to plant new perennials as the soil is still warm but there is generally more rainfall.
  • Dig up and store tender bulbs and tubers, such as cannas and dahlias.
  • Continue planting evergreens now.
  • Spread newly dug potatoes out to dry for a few hours before storing them in in a cool dark place.
  • When beans and peas finish cropping simply cut the plant away at ground level, leaving the roots in the soil. These crops fix nitrogen which is slowly released into the soil as the roots break down.
  • Pinch off any young tomatoes that are too small to ripen. This will channel energy into ripening the remaining full-size fruits.
  • Herbs such as parsley, rosemary, chives, thyme and marjoram can be dug from the garden and placed in pots now for growing indoors this winter.
  • Cool-season lawns are best fertilized in fall. Make up to 2 applications between now and December. Do not exceed rates recommended by fertilizer manufacturer.
  • Aerate, lime and over seed your lawn. This is the best thing you can do for a lush lawn next year.


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