When can I plant Potatos in Zone 10b

One of the best tools that we have as gardeners to help us figure out our gardening schedule is the USDA zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for our area.

The USDA zone info for Zone 10b can be reffered to in order to determine when you can plant potatos.


Planting Calendar for Potatos

Frost tolerance for potatos: Very tolerant of frost.
When you should plant them: Up to 7 weeks before last frost.

You can plant potatos quite a bit earlier in the year because they are one of those plants that can tolerate quite a bit of cold weather.

JanFebMarAprMayJunJulAugSepOctNovDec
Legend 
A good time to plant potatos
Possibly ok, but a risky time to plant potatos
Probably not a good time to plant potatos

The earliest that you can plant potatos in Zone 10b is January. However, you really should wait until February if you don't want to take any chances.

The last month that you can plant potatos and expect a good harvest is probably October. If you wait any later than that and your potatos may not have a chance to really do well. You can get started a few weeks earlier by starting your potatos indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on January 31 in Zone 10b. It might get as low as 35°F during the coldest months of winter.

Always keep in mind that USDA zone info for Zone 10b is an average and our actual date of last frost will vary from year to year. Half of the time in Zone 10b there is a last frost after January 31 so make sure that you are prepared to cover your potatos if we have a late frost.

USDA Zone Info for Zone 10b

Here is the info for USDA Zone 10b.

Average Date of Last Frost (spring)January 31
Average Date of First Frost (fall)December 15
Lowest Expected Low35°F
Highest Expected Low40°F

This means that on a really cold year, the coldest it will get is 35°F. On most years you should be prepared to experience lows near 40°F.

Plants to Grow in Zone 10b

You may be interested in our other planting guides for Zone 10b.