Fall garden cleanup is the job that sets up the whole of next year. A garden put to bed properly in fall — spent crops cleared, diseased material removed, tools cleaned, soil protected, pots stored — starts spring clean, healthy and ready to plant. A garden left messy over winter starts spring with pests, disease and weeds already established, and the gardener spends the first weeks of the season catching up instead of planting. Cleanup is not glamorous work, but it is the highest-value work of the fall, and it is the foundation that every other fall job builds on.
The cleanup routine is straightforward: clear, clean, protect, store, and note. Clear spent plants and debris. Clean tools, pots and the greenhouse. Protect the soil with mulch or a cover crop. Store what needs storing. And note what worked and what did not, so next year's garden is planned from experience. This guide works through the routine bed by bed and job by job, and it also explains what not to clear, since some things are better left standing for winter. If you are unsure about cleanup in your area, check your local extension service.
Clearing beds and borders
Start by clearing spent annuals and vegetable crops. Pull up finished tomatoes, beans, courgettes, cucumbers and other annuals, and compost healthy material. Our composting basics guide explains how to compost garden waste, and our fall composting guide covers the autumn glut specifically. Do not compost diseased plants unless the heap runs hot — bag diseased material and dispose of it instead, since a cool heap will not kill disease and you will spread it when you use the compost. Our powdery mildew treatment and early blight tomatoes guides explain which diseases matter most.
Pull weeds before they set seed, since a weed allowed to seed in fall becomes many weeds in spring, and remove fallen fruit and leaves from under trees and roses, since they harbour disease. Our apple scab and black spot roses guides explain why leaf clearance matters for those plants. Cut back perennials that have collapsed after frost, such as hostas, but leave ornamental grasses and plants with attractive seed heads standing until spring — see our fall pruning guide and fall flower care guides for what to cut and what to leave. Clear leaves from lawns regularly, since a thick layer of leaves kills grass — see our fall lawn care guide.
Cleaning tools, pots and the greenhouse
Clean tools before storing them for winter. Scrape off soil, wash with soapy water, dry thoroughly, and oil metal parts lightly to stop rust. Sharpen secateurs, loppers and mower blades, since sharp tools make clean cuts and blunt tools crush stems and invite disease. Our fall pruning guide explains why sharp tools matter. Clean pots and trays with soapy water and a brush, since pests and disease survive on dirty equipment, and store them under cover so they do not crack in frost. Terracotta pots are particularly vulnerable to frost, so bring them under cover or wrap them.
Clean the greenhouse in fall, washing glass inside and out so light gets in, clearing staging, and removing shading that is no longer needed. A clean greenhouse is warmer, brighter and healthier than a dirty one, and it gives overwintering plants a far better chance. Check greenhouse heaters and ventilation before cold weather, and make sure doors and vents close properly. Drain hoses, shut off outdoor taps, and drain irrigation systems before hard frost, so pipes and taps do not split. Our fall watering guide covers draining water systems, and our fall pest control guide covers cleaning as pest control.
Protecting the soil for winter
Do not leave beds bare over winter. Bare soil loses nutrients in rain, loses structure in wind, and loses soil life as it dries and freezes. Protect beds with a thick mulch of leaves, straw or compost, or sow a cover crop that will protect and feed the soil over winter. Our fall soil preparation guide explains soil protection in detail, our fall mulching guide covers mulching, and our cover crops for soil guide explains the living alternative. Spread compost on empty beds and let worms pull it down over winter, and label beds if you rotate crops, noting what grew there this year so next year's plan avoids putting the same family back in the same place.
Check drainage in beds that stayed wet in fall, since waterlogged soil over winter rots roots and damages soil structure. Our soil drainage improvement guide explains how to fix wet beds, and our raised bed soil mix guide covers raised beds, which drain better than ground-level beds. Fork compacted beds lightly when the soil is moist but not wet, working in compost as you go, and let frost do some of the work over winter, since frost breaks up heavy soil. Do not walk on wet beds, which compacts them, and use boards or permanent paths to reach the middle of beds.
Storing, protecting and putting away
Store tender bulbs and tubers lifted in fall, such as dahlias, in a cool, frost-free place, in dry compost or paper, and check them regularly over winter for rot. See our growing dahlias guide for dahlia storage. Bring tender plants indoors before frost, as our fall houseplant care guide explains, and move pots to a sheltered spot, grouping them together against a wall and wrapping them to insulate roots. Protect young trees from animals with guards, as our fall fruit care guide explains, and check ties and supports before winter storms.
Put away furniture, ornaments and anything else that could be damaged by frost or storms, and store seed packets in a cool, dry place, since damp and heat reduce germination. Check stored crops regularly and remove anything damaged, as our fall harvesting guide and fall pest control guides explain. Service the mower, drain fuel or add stabiliser as the manufacturer directs, and put tools away clean, sharp and oiled, so spring starts with tools that work rather than tools that need fixing.
What to leave alone in fall
Not everything should be cleared in fall. Leave ornamental grasses and seed heads standing for winter structure and for birds that eat their seeds. Leave a few undisturbed corners for beneficial insects and wildlife, since a garden with no shelter at all loses its predators. Leave evergreen shrubs and hedges largely alone apart from a light tidy, since heavy pruning in fall weakens them. Leave bulbs planted in fall alone, apart from a mulch, and leave cover crops and mulched beds alone to do their work over winter. And leave the soil alone once it is protected: digging in winter, when the soil is wet and cold, damages its structure more than it helps.
Do not feed plants in fall as part of cleanup, since feeding pushes soft growth that frost damages — see our fall fertilizing guide. Do not spray as a routine, since fall pest control is mostly cleaning up and removing shelter, not spraying — see our fall pest control guide. And do not rush: cleanup done well over a few weeks is better than cleanup done badly in a single weekend. Work bed by bed, finish each one properly, and keep a note of what you did, so next fall's cleanup starts from a record rather than a guess.
Frequently asked questions
When should I do fall garden cleanup?
Through fall, bed by bed, as crops finish and frost arrives. Start with spent annuals and vegetables, then perennials once frost has finished them, and finish with soil protection, tool cleaning and storage before hard frost.
Should I compost diseased plants in fall?
Not in a cool heap. Disease survives cool composting and spreads when the compost is used. Bag diseased material and dispose of it, unless your heap runs genuinely hot.
What should I leave standing over winter?
Ornamental grasses, seed heads for birds, evergreen structure, and a few undisturbed corners for wildlife. Cut back perennials that have collapsed after frost, but leave plants with winter interest until spring.
Do I need to clean my greenhouse in fall?
Yes. Wash glass inside and out so light gets in, clear staging, remove shading, and check heaters and ventilation before cold weather. A clean greenhouse is warmer, brighter and healthier.
How do I protect soil over winter?
Cover beds with a thick mulch of leaves, straw or compost, or sow a cover crop. Do not leave beds bare, since bare soil loses nutrients and structure in winter rain and wind. If you are unsure, check your local extension service.