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

In Imperial Beach you can estimate when it's the best time to plant cuphea by referring to the USDA zone info.

Planting Calendar for Cuphea

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

It's probably not a good idea to plant cuphea until after the last frost has passed because they require warm weather.

The earliest that you can plant cuphea 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 cuphea and expect a good harvest is probably September. If you wait any later than that and your cuphea may not have a chance to grow to maturity. You can get started a few weeks earlier by starting your cuphea indoors.

Last Frost Date

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

Keep in mind that USDA zone info for Imperial Beach is just an average and the actual date of last frost is different every year. Half of the time in Imperial Beach there is a last frost after January 31 so just be sure to be ready to protect your cuphea in the event of one of those late frosts.

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.