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

In Whittier you can estimate when it's possible to plant hibiscus by using the USDA zone info.

Planting Calendar for Hibiscus

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

Since hibiscus require warm weather you need to wait until after the last frost has passed before you can plant them.

The earliest that you can plant hibiscus in Whittier 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. If you wait any later than that and your hibiscus may not have a chance to really do well. You can get started a few weeks earlier by starting your hibiscus indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on January 31 in Whittier. In the coldest months of winter you should expect an average low temperature of 30°F.

Remember that USDA zone info for Whittier is just an average and the actual date of last frost can change quite a bit from year to year. Half of the time in Whittier you get a frost after January 31 so just be sure to be ready to cover your hibiscus in the event of a surprise late frost.

USDA Zone Info for Whittier

Here is the info for USDA Zone 10a.

Average Date of Last Frost (spring)	January 31
Average Date of First Frost (fall)	December 15
Lowest Expected Low	30°F
Highest Expected Low	35°F

This means that on a really cold year, the coldest it will get is 30°F. On most years you should be prepared to experience lows near 35°F.

Plants to Grow in Whittier

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