One of the best tools that you have as gardeners to help us determine your 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 your area.

In Corona you can determine when it's possible to plant sweet potato vine by checking out the USDA zone info.

Planting Calendar for Sweet Potato Vine

Frost tolerance for sweet potato vine:	Not tolerant of frost.
When to plant:	After all chance of frost has passed.

It's probably a bad idea to plant sweet potato vine until after the last frost when the weather gets warmer because they require warm weather.

The earliest that you can plant sweet potato vine in Corona is March. However, you really should wait until April if you don't want to take any chances.

The last month that you can plant sweet potato vine and expect a good harvest is probably September. If you wait any later than that and your sweet potato vine may not have a chance to grow to maturity. If you are starting your sweet potato vine indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

In Corona the average date of last frost happens on February 15. It might get as low as 25°F during the coldest months of winter.

Just be sure to remember that USDA zone info for Corona is an average and the actual date of last frost is different every year. Since half of the time in Corona there is a last frost after February 15 be ready to protect your sweet potato vine if you have a surprise late frost.

USDA Zone Info for Corona

Here is the info for USDA Zone 9b.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	25°F
Highest Expected Low	30°F

This means that on a really cold year, the coldest it will get is 25°F. On most years you should be prepared to experience lows near 30°F.

Plants to Grow in Corona

You may be interested in your other planting guides for Corona.