Published on September 28th, 2023 | by Bronwynne Bailey


Lafayette County Master Gardeners: September Garden Calendar


  • Build or buy a compost bin in anticipation of autumn leaves.


  • Plant cool season vegetables: broccoli, cauliflower, brussels sprouts, cabbage, spinach, potatoes, lettuce, carrots, beets, radishes, and English peas.
  • Sow hardy annuals: sweet alyssums, calendulas, annual pinks, snapdragons, sweet peas.
  • Sow rye grass seed in winter lawns (only when necessary).


  • Stop feeding mums when the buds start showing color.
  • Don’t fertilize ornamentals after August 15.


  • Apply pre-emerge herbicide to the lawn for winter weed prevention.
  • Turn your compost pile.
  • Propagate by layering: Scrape the underside of a strong branch, bend it down to the ground, cover with soil, and weigh down with a brick. Check for roots after 3 months.
  • Pick flowers in bloom and dry them for future arrangements. Bundle flowers together and hang them upside-down in a dry, sheltered area.
  • Repot houseplants. Prune away damaged foliage and apply fertilizer.


  • Cannas, cosmos, copper plants, marigolds, periwinkles, salvias, ageratums, coleus, asters, celosias, chrysanthemums, coral vines, ginger lilies, morning glories, petunias, phlox, rattle boxes, spider lilies, torenias, vincas.


  • Golden raintrees, beautyberries, dogwoods, ginkgos, pyracanthas.
With their colorful and numerous blooms, fall mums are an easy way to make a big landscape impact. (Photo by MSU Extension/Gary Bachman)

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