September To-Do List for Your Wisconsin Garden

  1. Lawn Care
    • Aerate compacted soil.
    • Test soil for fertilizer needs.
  2. Tree Maintenance
    • Prune disease-susceptible trees (e.g., maple, birch, oak, mountain ash).
  3. Planting
    • Plant new trees and shrubs—ideal for root establishment before spring.
  4. Lawn Grasses
    • Sow grass seeds—till soil and water lightly several times a week.
  5. Herb Garden
    • Dig up herbs (rosemary, parsley, chives, thyme) and pot them for indoor growth.
  6. Houseplants
    • Begin moving houseplants indoors.
  7. Perennials
    • Divide and replant perennials.
  8. Harvesting
    • Watch for frost forecasts. Harvest tomatoes, Brussels sprouts, and parsnips.
    • Ripen tomatoes indoors, away from sunlight.
  9. Fall Crops
    • Extend fall crops (radish, lettuce, spinach) by using cold frames.
  10. Pest Prevention
    • Dispose of fallen fruit to prevent pests.
  11. Composting
    • Compost garden debris and kitchen scraps.
  12. Annuals
    • Take root cuttings (begonias, geraniums, impatiens) and grow them indoors.
  13. Seed Saving
    • Save seeds from self-pollinating flowers—dry and store in sealed containers.
  14. Soil Improvement
    • Add manure, compost, and leaves to enhance soil with organic matter.
  15. Halloween Preparation
    • Bring Halloween magic to your garden with the Ultimate Decoration Bundle from HSU Growing Supply. Includes straw bale, corn stalks, pumpkins, and a fall leaf bin. The bundle will be delivered on September 25th, with weekly leaf bin pick-up until November 13th. Final pick-up includes your Halloween décor, except for the straw bale, which should be placed on the side for collection.

This checklist is a simple way to keep your garden thriving and your home festive this Fall!