One of the best tools that you have as gardeners to help us figure out your gardening schedule is the USDA zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

A way of making a decision about when it's possible to plant hypericum is to check out the USDA zone info for Santa Ana.

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.

Hypericum do ok in some cold which means that you can plant them a bit earlier in the year than plants that are more sensitive to the cold.

The earliest that you can plant hypericum in Santa Ana 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. If you wait any later than that and your hypericum may not have a chance to fully mature. Starting your hypericum indoors is a great way to get them started a little bit earlier.

Last Frost Date

The average date of last frost is January 31 in Santa Ana. It might get as low as 30°F during the coldest months of winter.

Keep in mind that USDA zone info for Santa Ana may not be accurate from year to year and the actual date of last frost can change quite a bit from year to year. Half of the time in Santa Ana you get surprised by a frost after January 31 so be sure to be ready to protect your hypericum if you have a surprise late frost.

USDA Zone Info for Santa Ana

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 Santa Ana

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