Fall Garden Cleanup
A Simple Guide to Closing Out the Growing Season
Fall is more than just the end of the harvest. It’s a vital window for protecting your soil, preventing pest outbreaks, and setting your garden up for success next spring. By focusing on a few key steps now, you can ensure a healthier, more productive garden for years to come.
When to Start Fall Cleanup
Wait for the first light frost to signal annuals to finish.
Wait until perennials have turned yellow or brown.
Ideal timing is usually late September through early November.
Highlight: Avoid cleaning up too early while plants are still actively photosynthesizing and storing energy in their roots.
Remove From the Garden
Spent annual flowers (roots and all).
Vegetable plants that have finished producing.
Any fruit that has fallen to the ground.
Heavily diseased or pest-ridden foliage.
Consider Leaving
Seed heads for birds (sunflowers, echinacea, rudbeckia).
Hollow stems for native bee nesting sites.
Leaf litter in garden borders as natural mulch.
Note: Leaving some 'mess' is one of the best things you can do for your local ecosystem, providing food and habitat through the winter months.
Healthy Plant Material
Can be cold-composted or left on the soil surface to break down naturally and provide organic matter.
Diseased Plant Material
Remove COMPLETELY from the property. Do not compost, as most home piles do not get hot enough to kill pathogens like blight or powdery mildew.
Don't Forget the Supports
Clean and store tomato cages and trellises.
Remove twine or plastic netting from supports.
Wipe down metal supports to prevent rust.
Tip: A 10% bleach solution can sanitize supports if you struggled with heavy disease this year.
One Last Round of Weeding
Every weed pulled now means thousands fewer seeds germinating in the spring. Pay special attention to weeds that have already gone to seed.
The Plants May Be Finished. The Soil Isn't.
Add Compost
Layer 1-2 inches of high-quality compost over the surface.
Cover the Soil
Use straw, shredded leaves, or wood chips to protect from erosion.
Consider Cover Crops
Plant clover or rye to build soil structure over winter.
Limit Disturbance
Avoid heavy tilling, which destroys the soil's microbial life.
Raised Bed Checklist
- Remove irrigation lines.
- Top with 2 inches of compost.
- Cover with burlap or heavy straw.
Container Garden Checklist
- Empty soil from ceramic pots (to prevent cracking).
- Scrub pots with soap and water.
- Stack and store in a dry area.
In-Ground Garden Checklist
- Broadfork the soil to relieve compaction.
- Plant a winter cover crop.
- Mulch walkways to prevent mud.
Before Freezing Weather Arrives
- Drain and store garden hoses.
- Shut off exterior water valves.
- Insulate spigots in colder climates.
Timing: Best done immediately after the first hard freeze is forecast.
Before You Forget...
- What varieties performed the best?
- Where did you struggle with disease or pests?
- What do you want to grow MORE of next year?
Tip: Take photos of the empty beds now to help identify where perennials and bulbs are planted when you're planning in January.
Fall Garden Cleanup in 6 Steps
1. Weed
Remove all remaining weeds.
2. Clean
Clear annual beds and fallen debris.
3. Sort
Compost healthy items, discard diseased ones.
4. Support
Sanitize and store all trellises and cages.
5. Feed
Add a layer of compost to all beds.
6. Cover
Protect the soil with mulch or cover crops.