The USDA Zone info is a great tool for gardeners to help us determine your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

You will be able to estimate when to plant armeria by using the USDA zone info for Hercules.

Planting Calendar for Armeria

Frost tolerance for armeria:	Very tolerant of frost.
When to plant:	Up to 7 weeks before last frost.

Armeria tend to make it in cold weather which means that you can plant them a lot earlier in the year than other frost tender plants.

The earliest that you can plant armeria in Hercules is January. However, you really should wait until February if you don't want to take any chances.

The last month that you can plant armeria and expect a good harvest is probably October. If you wait any later than that and your armeria may not have a chance to really do well. You can get started a couple of weeks earlier by starting your armeria indoors.

Last Frost Date

On average the last frost has passed is on February 15 in Hercules. In the coldest months of winter you can expect an average low temperature of 25°F.

Since the USDA zone info for Hercules is not always accurate the actual date of last frost is different every year. Half of the time in Hercules you get a frost after February 15 so make sure that you are prepared to cover your armeria if you have 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.