October is the month the Zone 8 garden changes gear. The average first autumn frost is Nov 15–Dec 1, so tender crops come out, storage crops come in, and garlic goes into the ground for next year. October is also the best month for the unglamorous jobs, cleaning, mulching, and putting beds to bed properly, that make spring easy.
What October means in Zone 8
USDA Zone 8 runs through the southern United States, from parts of Texas, Louisiana, Georgia and South Carolina to the Pacific Northwest coast and parts of California. Winters are mild, with average winter lows of 10 to 20°F, and the growing season is long, which gives Zone 8 gardeners one of the most forgiving calendars in the country.
The dates that matter most are the frost averages. The average last spring frost in Zone 8 is Mar 1–15, and the average first autumn frost is Nov 15–Dec 1. These are USDA zone averages drawn from NOAA frost records, not exact dates for any one garden. Always check your local extension service and the forecast before planting tender crops outside. Use our frost date calculator for your zone’s averages.
October in Zone 8 is harvest and planting at once: storage crops come in, garlic goes into the ground, and fall peas and salads can still be sown. The average first frost does not arrive until late November, so there is no need to rush the fall garden indoors yet.
October task list
- Harvest sweet potatoes, winter squash, pumpkins, carrots, beets and leeks.
- Plant garlic and shallots for next year.
- Sow cover crops on empty beds and mulch perennials.
- Start herbs and microgreens indoors on a windowsill.
- Lift and store tender bulbs, and clean and oil tools.
- Protect late crops with cloches, cold frames and fleece.
- Rake leaves for compost and leaf mould: do not waste them.
What to start indoors in October
Start these under cover now, with strong light and steady moisture.
- Parsley — matures in 70–90 days; hardy; soil pH 6.0–7.0.
- Chives — matures in 60–90 days; hardy; soil pH 6.0–7.0.
- Mint — matures in 60–90 days; hardy; soil pH 6.0–7.0.
What to direct-sow in October
Sow these straight into prepared beds and water the seed row well.
- Garlic — matures in 180–240 days; hardy; soil pH 6.0–7.0.
- Peas — matures in 60–70 days; hardy; soil pH 6.0–7.5.
- Lettuce — matures in 45–60 days; hardy; soil pH 6.0–7.0.
- Spinach — matures in 40–50 days; hardy; soil pH 6.0–7.5.
What to transplant in October
Harden seedlings off for a week before planting out, and water them in well.
- Garlic — matures in 180–240 days; hardy; soil pH 6.0–7.0.
- Onions — matures in 90–120 days; hardy; soil pH 6.0–7.0.
What to harvest in October
Pick little and often: regular picking keeps beans, squash and cucumbers producing.
- Sweet potatoes — tender, matures in 90–120 days.
- Butternut squash — tender, matures in 90–110 days.
- Pumpkins — tender, matures in 90–120 days.
- Carrots — hardy, matures in 60–80 days.
- Beets — hardy, matures in 50–70 days.
- Kale — hardy, matures in 50–65 days.
- Collard greens — frost-tolerant, matures in 60–80 days.
October planting at a glance
| Crop | What to do | Days to maturity | Cold tolerance | Spacing |
|---|---|---|---|---|
| Parsley | Start indoors | 70–90 | hardy | 6–8 in |
| Chives | Start indoors | 60–90 | hardy | 6–8 in |
| Mint | Start indoors | 60–90 | hardy | 18–24 in |
| Garlic | Direct sow | 180–240 | hardy | 6 in |
| Peas | Direct sow | 60–70 | hardy | 2–3 in |
All figures are broad published ranges from standard horticultural references, and they vary by variety, soil and weather. Check your local extension service for advice on your own garden.
Soil, water and feeding in October
October soil is cooling and wetter, so stay off beds when they are sodden to avoid compaction. Spread a thick mulch of leaves or straw over empty beds and let the worms work it in over winter. Plant garlic in well-drained soil: wet feet rot cloves faster than cold does.
Frost and weather protection
Frost is now the main event in Zone 8, where the average first autumn frost is Nov 15–Dec 1. A light frost sweetens kale, carrots and brussels sprouts, but it kills tomatoes, peppers, beans and basil outright, so harvest those before the first cold night. Keep fleece, cloches and cold frames ready for hardy salads, and remember that averages are not guarantees: check your local extension service and the forecast, because a hard freeze can follow a mild week.
Pests and problems to watch
October pests are winding down, but slugs are still active in damp weather and love late lettuce. Clear debris where slugs and snails hide, and remove spent tomato and squash plants so disease does not overwinter. Store harvested crops in a cool, dry place and check them weekly for rot.
Frequently asked questions
When is the first frost in Zone 8?
The average first autumn frost is Nov 15–Dec 1, and the average last spring frost is Mar 1–15. These are USDA zone averages: check your local extension service for your county's dates and watch the forecast.
What should I plant in October in Zone 8?
Garlic and shallots are the main October planting, plus cover crops on empty beds. Hardy salads can still go under a cloche or cold frame.
How do I store sweet potatoes and squash?
Cure sweet potatoes in a warm place for a week or two, then store them cool and dry. Winter squash needs a hard skin and a cool, dry store: check both weekly for soft spots.
Can I still harvest anything in October in Zone 8?
Yes: kale, brussels sprouts, leeks, carrots, beets, turnips and parsnips all harvest well in October, and many taste better after a light frost.
For the full year, browse the planting calendar hub. Nearby months: September in Zone 8, November in Zone 8, October in Zone 7. Use the mulch calculator to work out exact dates for your own garden.