Before planting it is a good idea to find your USDA Zone info to determine your garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

The first chance to plant hibiscus in Hercules can be figured out 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.

You should 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 Hercules 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. If you wait any later than that and your hibiscus may not have a chance to fully mature. You can get started a couple of weeks earlier by starting your hibiscus indoors.

Last Frost Date

The average date of last frost is February 15 in Hercules. In the coldest months of winter you should expect an average low temperature of 25°F.

Remember that the actual date of last frost is an average because it is based on the USDA zone info for Hercules and it changes from year to year. Since half of the time in Hercules it frosts late in the year after February 15 be ready to cover your hibiscus in the event of one of those late frosts.

USDA Zone Info for Hercules

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 Hercules

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