Jicama in Zone 10a & 10b
Pachyrhizus erosus
Yes, jicama grows in zones 10a and 10b. Start seeds indoors Dec 19–Dec 26 and plant out Feb 13–Feb 20.
When to plant jicama in zone 10b
Zones 10a and 10b share the same average frost dates, so this page covers both.
Method: Start indoors: Start indoors from seed, then transplant outside. It needs a head start most zones can't give it by direct-sowing alone.
| Start indoors | Dec 19–Dec 26 |
|---|---|
| Direct sow / transplant outside | Feb 13–Feb 20 |
| Estimated harvest | Jul 13–Jul 20 (~150 days after transplanting) |
Spacing: 1 per square foot (square-foot-gardening spacing). Mature height: 8-15 ft.
Plant alongside it in zone 10b
These go outside within two weeks of jicama in zone 10b, so one planting day can cover them.
- TomatoFeb–Apr
- Sweet CornFeb–Mar
- CucumberFeb–Apr
- ZucchiniFeb–Mar
- BroccoliniJan 30–Feb 6
- Napa Cabbage (Chinese Cabbage)Jan 30–Feb 6
Jicama is worth knowing two things about before you plant it: it needs a very long season, and most of the plant is poisonous.
How jicama fits zone 10's season
Zone 10b's frost-free window runs about 324 days, from January 30 to December 20. Jicama needs about 150 days from transplant to first harvest.
Jicama planting windows in every zone
Zone 10b is highlighted. Useful for comparing against a neighbouring zone, or for a garden somewhere else.
| Zone | Start indoors | Sow or plant out | Harvest |
|---|---|---|---|
| 8a & 8b | Feb 11–Feb 18 | Apr 8–Apr 15 | Sep 5–Sep 12 |
| 9a & 9b | Jan 4–Jan 11 | Mar 1–Mar 8 | Jul 29–Aug 5 |
| 10a & 10b (your zone) | Dec 19–Dec 26 | Feb 13–Feb 20 | Jul 13–Jul 20 |
| 11a & 11b | Nov 20–Nov 27 | Jan 15–Jan 22 | Jun 14–Jun 21 |
Harvest dates are about 150 days after the sow or plant-out date, not after starting seeds indoors.
Good companions
No well-established companions for jicama.
Where to buy jicama seeds
True Leaf Market (each supplier's jicama seeds)
See why we recommend these suppliers →
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See it growing
Search YouTube for "growing jicama" videos → (a live search, not a hand-picked video; results vary and aren't vetted by us)
← Back to the full zone 10b calendar · Plan your beds in the Garden Designer →
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Growing Jicama in USDA zone 10b: when to start seeds indoors, when to direct-sow, and when to expect a harvest.
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