What to plant in October in zone 10b

6 crops to start indoors, direct sow, or transplant in October in USDA hardiness zone 10b. Typical last spring frost around Jan 9, 2026, first fall frost around Jan 5, 2026 — exact dates vary by location within the zone.

Zone 10b covers a lot of ground. Enter your ZIP for October dates from your nearest weather station and a month-by-month calendar:

Start indoors

Sow these under lights or on a windowsill now for transplants later.

Bunching Onion
Leek
Onion
Shallot

Plant out

Set out these crops (sets, tubers, or starts) now.

Elephant Garlic
Garlic

Keep going

Full zone 10b planting calendar →
What to plant in October (all zones) →
Succession planting for a continuous harvest →

Timings use NOAA 1991–2020 climate normals for a representative location (ZIP 90846) in zone 10b, computed with the same engine as GardenDraft’s in-app schedule. Guidance, not guarantees — your exact dates depend on your address.