DibbleWhen to plant rhubarb in Zone 10
In Zone 10, the last spring frost usually passes around January 31 and the first fall frost arrives around December 15, leaving about 318 frost-free days. The windows below are computed from those frost dates, with the same math the Dibble app uses.
Nearly frost-free. Grow cool crops in winter; summers are too hot for many vegetables.
Planting windows for rhubarb in Zone 10
| Task | Window |
|---|---|
| Transplant | Jan 10 to Jan 24 |
| Estimated harvest | Jan 10 to Mar 11 |
The harvest estimate counts 365 days to maturity, then a picking window of about 60 days. These windows use typical frost dates for Zone 10; Dibble pins them to your exact ZIP code.
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How to grow rhubarb
Plant crowns in early spring. A hardy perennial, wait until the second year to harvest the tart stalks (never the leaves).
Companion plants
Good neighbors for Rhubarb:
Rhubarb in nearby zones
Keep exploring
Rhubarb: the full growing guide · The Zone 10 planting calendar · Every crop and zone
Plant at the right time this season
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Dates are estimates based on typical frost dates for the zone. Your yard has its own microclimate, so use them as a starting point and adjust as you learn your space.