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.

In Hayward you can figure out when it's possible to plant hibiscus by referring to the USDA zone info.

Planting Calendar for Hibiscus

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

Hibiscus do not do well in cold weather which tells us that it is important to wait until it warms up after the last frost has passed before you can plant them.

The earliest that you can plant hibiscus in Hayward 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. You probably don't want to wait any later than that or else your hibiscus may not have a chance to grow to maturity. You can get started a little bit earlier by starting your hibiscus indoors.

Last Frost Date

On average all chance of frost has passed is on January 31 in Hayward. It might get as low as 30°F during the coldest months of winter.

Since the USDA zone info for Hayward is just an average the actual date of last frost can change quite a bit from year to year. Since half of the time in Hayward you get a frost after January 31 be ready to cover your hibiscus if you have a surprise late frost.

USDA Zone Info for Hayward

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 Hayward

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