The USDA Zone info is a great tool for gardeners to help us figure out your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

A common way of getting a good idea when you can plant hibiscus is to use the USDA zone info for Santa Clara.

Planting Calendar for Hibiscus

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

It's a bad idea to plant hibiscus until after the last frost because they are not cold tolerant.

The earliest that you can plant hibiscus in Santa Clara is April. However, you really should wait until May if you don't want to take any chances.

The last month that you can plant hibiscus and expect a good harvest is probably August. If you wait any later than that and your hibiscus may not have a chance to fully mature. You can get started a few weeks earlier by starting your hibiscus indoors.

Last Frost Date

The average date of last frost is March 15 in Santa Clara. You can expect an average low temperature of 10°F in the coldest months of winter.

Always keep in mind that USDA zone info for Santa Clara is not always accurate and the actual date of last frost can change quite a bit from year to year. Half of the time in Santa Clara you get a frost after March 15 so always be ready to protect your hibiscus in the event of one of those late frosts.

USDA Zone Info for Santa Clara

Here is the info for USDA Zone 8a.

Average Date of Last Frost (spring)	March 15
Average Date of First Frost (fall)	November 15
Lowest Expected Low	10°F
Highest Expected Low	15°F

This means that on a really cold year, the coldest it will get is 10°F. On most years you should be prepared to experience lows near 15°F.

Plants to Grow in Santa Clara

You may be interested in your other planting guides for Santa Clara.