When can I plant Sweet Potatos in Zone 11b

One of the first steps we take when we are getting a good idea our gardening schedule is find our USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for our area.

The best time to plant sweet potatos in Zone 11b should be estimated 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.

It's probably a bad idea to plant sweet potatos until after all chance of frost has passed because they require warm weather.

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 11b 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 sweet potatos and expect a good harvest is probably November. If you wait any later than that and your sweet potatos may not have a chance to fully mature. Starting your sweet potatos indoors is a great way to get them started a few weeks earlier.

Last Frost Date

In Zone 11b it never frosts. We should expect an average low temperature of 45°F in the coldest months of winter.

Since the USDA zone info for Zone 11b is just an average our actual date of last frost changes from year to year. Since it never frosts in Zone 11b you do not have to be ready to protect your sweet potatos if we have a late frost.

USDA Zone Info for Zone 11b

Here is the info for USDA Zone 11b.

Average Date of Last Frost (spring)Never
Average Date of First Frost (fall)Never
Lowest Expected Low45°F
Highest Expected Low50°F

This means that on a really cold year, the coldest it will get is 45°F. On most years you should be prepared to experience lows near 50°F.

Plants to Grow in Zone 11b

You may be interested in our other planting guides for Zone 11b.