Every October garden list you read is written for somebody else’s climate. The jobs are the same everywhere, but the order flips completely depending on one date: whether your average first frost has already happened. In zone 4 it arrived in late September and October is a clearing and planting month. In zone 8 it is still five weeks away and October is a harvest and protection month. Same list, opposite ends.
So start by finding out which half of the list you are on, then work down. Items are marked “before your first frost”, “after it”, or “either way”, and the ones that genuinely cannot wait are the water lines, the tender plants and the garlic.
Find your first frost date
Enter your US ZIP code for your USDA zone, frost dates & planting calendar.
Or look up the averages for a city near you on the frost dates page, and read first frost dates and frost protection for what that date does and does not promise. It is a 50 percent probability from a thirty year average, which means half of all years are earlier than the number.
Where you are on October 1
| Zone band | Average first frost | On October 1 | The jobs that matter most this month |
|---|---|---|---|
| 3 to 4 | Sep 15 to Sep 28 | Frost has already happened | Clear and cover beds, finish garlic, lift tender bulbs, drain |
| 5 to 6 | Oct 3 to Oct 18 | Frost arrives this month | Frost watch, then garlic, bulbs, mulch, cover crops |
| 7 to 8 | Oct 25 to Nov 15 | Frost is still weeks away | Last sowings, bulbs, transplants, cover crops, garlic late |
| 9 to 10 | Nov 30 to Dec 31 | The cool season is starting | Sowing month; frost jobs wait until November or December |
| 11 and up | none | No frost to plan around | Cool season planting, irrigation and shade rather than cover |
Beds and vegetables
1. Write your frost date on the calendar, then subtract two weeks. Before your first frost. Everything else on this list keys off that date, and the two week subtraction is the margin that covers the half of years that come in early. Set a reminder to check the forecast each evening from that date on.
2. Harvest everything tender the day before a frost is predicted, green tomatoes included. Before. Basil, beans, cucumbers, summer squash, peppers, eggplant and melons are all finished by a single light frost, so strip the plants rather than picking selectively. None of them ripen further on a dead vine. Tomatoes are worth handling separately: anything showing the faintest colour break ripens indoors on a counter or in a paper bag, while anything caught by frost simply rots. Pull whole plants and hang them somewhere sheltered if you are short of counter space.
3. Cover what is worth covering, and leave the crops that frost improves. Before. A frost blanket on hoops buys a few degrees, and the two rules that make it work are supporting it off the foliage and sealing the edges to the ground. Kale, carrots, parsnips, leeks, beets and Brussels sprouts need no protection at all and get better after a freeze, because they convert stored starch to sugar. The comparison of covers is in row covers versus frost blankets.
4. Plant garlic and shallots. After. The window opens at your first frost and runs about four weeks: October 3 to October 31 in zone 5a, October 13 through early November in zone 6a, and October 25 into late November in zone 7a. Plant the largest cloves only, two inches deep in mild zones and three to four in zone 5 and colder, then mulch. The full per zone window and the hardneck versus softneck choice are in the garlic guide.
5. Mulch the root crops you plan to dig through winter. After. Four to six inches of straw over carrots, beets, parsnips and leeks keeps the ground unfrozen and lets you harvest for weeks or months after the tops are gone. Mulch before the ground starts freezing, not after, and mark the rows, because you will not find them under snow.
6. Clear the beds, cover the soil, and be selective about the compost. After. Pull spent plants, but send anything with blight, powdery mildew, rust or squash vine borer damage to the bin rather than the compost heap. Then cover the bare soil, either with a cover crop or with mulch. Cereal rye still germinates in cold soil and is the latest cover crop you can sow. Bare soil over winter loses structure to rain, loses nitrogen, and grows weeds. What else can still go in the ground is in what to plant in October by zone.
Perennials, shrubs and bulbs
7. Plant spring bulbs. Either way. Daffodils, crocus, alliums, hyacinths and tulips go in once the soil has cooled and while the ground is still workable, which is most of October in zones 4 through 7. Depth is two to three times the height of the bulb, pointed end up, and planting too shallow is the usual mistake. In zone 8 and warmer, tulips and hyacinths need roughly 10 to 12 weeks in the refrigerator first, so buy now and plant around the turn of the year.
8. Plant and divide perennials, trees and shrubs, then water them. Either way. Fall planting works because roots keep growing in soil that is still warm while the top is dormant, which gives the plant a head start on spring. Divide crowded clumps of daylilies, hostas and irises now. Then keep watering new plantings and evergreens until the ground freezes, since winter damage on evergreens is usually drought rather than cold.
9. Leave most of the cutting back until spring. Either way. Standing stems and seed heads feed birds, shelter overwintering insects and catch snow that insulates the crown. Cut back the things that earn it: foliage with disease on it, peony leaves, bearded iris fans, and collapsed hosta leaves that harbour slugs. Remove that material rather than composting it.
10. Protect young trunks from voles and rabbits. After. A spiral guard or a collar of hardware cloth around the base of young fruit trees costs very little and prevents the kind of girdling damage that is only discovered in spring, when it is fatal. Pull mulch back a few inches from the trunk so the rodents have no cover.
Lawn and leaves
11. Mow the leaves into the lawn, stockpile the rest, and make the last cut count. Either way. Shredded leaves left on a lawn break down and feed it, and a mower or a leaf mulcher does the shredding in a fraction of the time raking takes. What you do not mulch in place is the best free mulch and compost input you will get all year, so long as you shred it, because whole leaves mat into a wet layer that sheds water. While you are out there, give cool season grass its fall feeding, which does more good than a spring one because the plant is putting energy into roots, and drop the cutting height slightly on the final pass to reduce matting and snow mould without scalping. In the South, October is when warm season lawns get overseeded with annual ryegrass for winter colour.
Water, tools and hardware
12. Drain everything that holds water, before the first hard freeze. Before. Disconnect and drain the hoses, shut the interior valve to outdoor taps, drain or blow out irrigation lines, empty rain barrels, and turn terracotta and ceramic pots upside down or bring them inside. A hose left attached traps water in the spigot, and the pipe that splits is usually the one behind the wall.
13. Clean, sharpen and put the tools away properly. Either way. Scrape the soil off spades and hoes, sharpen the edges, wipe metal with an oily rag. Clean sap off pruners, sharpen the blade, and oil the pivot. Run the mower dry or add fuel stabiliser, and pull the battery on anything cordless and store it somewhere that does not freeze. Bring in seed packets and fertiliser to a dry, mouse proof container. Tools put away dirty in October are tools you replace in April.
Indoor prep
14. Bring the houseplants and tender plants in before the nights turn. Before, and earlier than you think. Move them once night temperatures start dropping into the 50s rather than waiting for frost, because a sudden move is harder on a plant than an early one. Inspect the undersides of leaves and the soil surface, hose the plant down, treat anything you find, and quarantine new arrivals away from the rest for a couple of weeks. Cut back leggy growth and expect some leaf drop as they adjust to lower light.
15. Lift and store the tender bulbs. After. Dahlias, cannas, gladiolus and tuberous begonias come up once the first frost has blackened the tops. Cut the stems back, lift the clumps, let them dry for a few days out of direct sun, then pack them in slightly damp peat, vermiculite or wood shavings and store somewhere cool, dark and frost free. Label them, because you will not remember.
Those last two are the ones people postpone, and they are the two where the deadline is set by weather rather than by preference. Everything else on this list can slip a week. A dahlia tuber and a split water pipe cannot.