Beet in Zone 10a & 10b
Beta vulgaris
When to plant beet in zone 10b
Zones 10a and 10b share the same average frost dates in our data, so this page covers both.
Method: Start indoors: Start indoors from seed, then transplant outside. In your zone, Beet needs a head start on the heat that direct-sowing elsewhere doesn't require.
| Window | Fall window |
|---|---|
| Start indoors | Aug–Jan |
| Direct sow / transplant outside | Sep–Feb |
| Estimated harvest | Oct 26–Apr 24 '27 (~55 days after transplanting) |
Spacing: 9 per square foot (square-foot-gardening spacing). Mature height: 1-1.5 ft.
Zone 10b dates sourced from growinginthegarden.com.
Beets give you two crops in one: the root everyone thinks of, plus edible greens that can be harvested along the way without ruining the root underneath. They're also more tolerant of imperfect soil than carrots or other root crops, which makes them a good choice for a bed that isn't perfectly loose and stone-free.
How beet fits zone 10's season
Zone 10b's frost-free window runs about 324 days, from January 30 to December 20. Beet needs about 55 days from sowing to first harvest.
Good companions
- Onion: Neither competes heavily; onions deter some beet pests.
Where to buy beet seeds
See why we recommend these suppliers →
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See it growing
Search YouTube for "growing beet" videos → (a live search, not a hand-picked video; results vary and aren't vetted by us)
← Back to the full zone 10b calendar · Full companion planting guide · Full plant profile · Plan your beds in the Garden Designer →
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Growing Beet in USDA zone 10b: when to start seeds indoors, when to direct-sow, and when to expect a harvest.
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