Before planting it is a good idea to find your USDA Zone info to estimate 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 USDA zone info for Zone 10b can be used to determine when to plant hypericum.

Planting Calendar for Hypericum

Frost tolerance for hypericum:	Tolerant of a very small amount of frost.
When to plant:	Up to 3 weeks before last frost.

You can plant hypericum slightly earlier in the year because they are barely cold tolerant.

The earliest that you can plant hypericum in Zone 10b 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 hypericum and expect a good harvest is probably September. You probably don't want to wait any later than that or else your hypericum may not have a chance to fully mature. You can get started a few weeks earlier by starting your hypericum indoors.

Last Frost Date

In Zone 10b the average date of last frost happens on January 31. You should expect an average low temperature of 35°F in the coldest months of winter.

Just be sure to remember that USDA zone info for Zone 10b is just an average and the actual date of last frost changes from year to year. Since half of the time in Zone 10b last frost occurs after January 31 be ready to protect your hypericum if you have a surprise late frost.

USDA Zone Info for Zone 10b

Here is the info for USDA Zone 10b.

Average Date of Last Frost (spring)	January 31
Average Date of First Frost (fall)	December 15
Lowest Expected Low	35°F
Highest Expected Low	40°F

This means that on a really cold year, the coldest it will get is 35°F. On most years you should be prepared to experience lows near 40°F.

Plants to Grow in Zone 10b

You may be interested in your other planting guides for Zone 10b.