When can I plant Sweet Potatos in Zone 10b

Before planting it is a good idea to find our USDA Zone info to estimate our garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for our area.

In Zone 10b you can estimate when it's a good idea to plant sweet potatos by checking out the USDA zone info.


Planting Calendar for Sweet Potatos

Frost tolerance for sweet potatos: Not tolerant of frost.
When you should plant them: After the last frost has passed.

Since sweet potatos do not do well in cold weather you have to wait until after the last frost has passed before you can plant them.

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

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

The last month that you can plant sweet potatos and expect a good harvest is probably September. You probably don't want to wait any later than that or else your sweet potatos may not have a chance to grow to maturity. Starting your sweet potatos indoors is a great way to get them started a little bit earlier.

Last Frost Date

In Zone 10b the average date of last frost happens on January 31. We can expect an average low temperature of 35°F in the coldest months of winter.

Remember 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 we get a frost after January 31 so make sure that you are prepared to protect your sweet potatos in the event of a surprise 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.