One of the best tools that you have as gardeners to help us figure out your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The USDA zone info for Imperial Beach should be reviewed to figure out when you can plant hibiscus.

Planting Calendar for Hibiscus

Frost tolerance for hibiscus:	Not tolerant of frost.
When to plant:	After the last frost.

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

The earliest that you can plant hibiscus in Imperial Beach 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 hibiscus and expect a good harvest is probably September. Any later than that and your hibiscus may not have a chance to grow to maturity. Starting your hibiscus indoors is a great way to get them started a little bit earlier.

Last Frost Date

The average date of last frost is January 31 in Imperial Beach. In the coldest months of winter you should expect an average low temperature of 35°F.

Always keep in mind that USDA zone info for Imperial Beach is not always accurate and the actual date of last frost changes from year to year. Since half of the time in Imperial Beach last frost occurs after January 31 be ready to cover your hibiscus if you have a surprise late frost.

USDA Zone Info for Imperial Beach

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 Low	35°F
Highest Expected Low	40°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 Imperial Beach

You may be interested in your other planting guides for Imperial Beach.