October · USDA Zone 9
autumnWhat to plant in October in USDA zone 9
Autumn planting guide for zone 9 (Central + South Florida, Southern Texas, Southern California, Arizona) — a 280-day growing season with last frost around mid-February to early March and first frost around late November / early December.
Sow outdoors in October — zone 9
Direct-sow these seeds into prepared garden beds or large containers. Soil temperature matters more than the calendar date — wait for a sustained warm-up before sowing tender crops.
- Carrots, beets, lettuce, spinach, kale, mustard, peas, radishes, broccoli, cabbage
- Garlic (late October to November)
Transplant in October — zone 9
Move hardened-off seedlings into the garden. Tender crops want soil above 16 °C and night temperatures consistently above 10 °C; cool-season transplants tolerate light frost.
- Cool-season crops — main season opens
Harvest in October — zone 9
These crops should be ready or in active harvest in October for zone 9 gardens. Pick fruiting crops every 2-3 days to keep production going.
- Fall tomatoes, peppers, eggplant, citrus (early)
Universal October tasks
These apply across most US and UK gardens in October, regardless of zone.
- Plant garlic — the prime window for zones 4-7.
- Harvest and cure pumpkins, winter squash, sweet potatoes, and remaining tomatoes before hard frost.
- Sow cover crops on empty beds — winter rye, vetch, clover, oats.
- Plant garlic, shallots, and overwintering onions.
- Mulch perennial beds, garlic, and asparagus crowns.
- Clean and store tomato cages, stakes, and trellises.
Why this works for zone 9
Zone 9 has average annual minimum temperatures of 20 to 30°F (-7 to -1°C) and a frost-free window from mid-February to early March to late November / early December — about 280 growing days. Heat-tolerant tomato varieties (Solar Fire, Heatwave II) needed for midsummer. Cool-season crops grow Oct-Apr while northern zones are dormant.
Dates are zone-wide averages. Local microclimates (south-facing slopes, urban heat, lakeside warmth, elevation) can shift the window by 1-2 weeks within the same zone.
UK gardeners — October
October is the UK's garlic month — plant hardneck garlic by month's end. Sow overwintering broad beans, peas (Meteor, Douce Provence), and field beans. Plant out spring cabbage and overwintering onions. Harvest pumpkins, squash, apples, and main-crop potatoes.
Source and methodology
Frost-date averages from NOAA Climate Data Online within USDA zone 9. Hardiness boundaries from the USDA Plant Hardiness Zone Map (2023). Crop timing curated against US Cooperative Extension Service publications (UNL, UMN, NC State, Texas A&M, UF/IFAS, Oregon State) and cross-referenced against the RHS sowing calendar. Curated by the Growli editorial team.
Keep going
- ← September in zone 9
- November in zone 9 →
- All zones — what to plant in October
- USDA Zone 9 — frost dates and crop list
- Full 12-month planting calendar