The USDA Zone info is a great tool for gardeners to help us estimate your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

It's a good idea to figure out when to plant hibiscus by checking out the USDA zone info for Cupertino.

Planting Calendar for Hibiscus

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

You can not plant hibiscus until after the last frost has passed because they do not do well in cold weather.

The earliest that you can plant hibiscus in Cupertino 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 hibiscus and expect a good harvest is probably September. 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 is on February 15 in Cupertino. You can expect an average low temperature of 25°F in the coldest months of winter.

Since the USDA zone info for Cupertino is not always accurate the actual date of last frost changes from year to year. Since half of the time in Cupertino there is a last frost after February 15 be ready to protect your hibiscus in the event of a late frost.

USDA Zone Info for Cupertino

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 Cupertino

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