Before planting it is a good idea to find your USDA Zone info to figure out 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.

You can figure out when it's a good idea to plant artemesia in Calimesa by using the USDA zone info.

Planting Calendar for Artemesia

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

Artemesia do ok in moderate cold which tells us that you can start planting them slightly earlier than plants that are more sensitive to the cold.

The earliest that you can plant artemesia in Calimesa 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 artemesia and expect a good harvest is probably September. You probably don't want to wait any later than that or else your artemesia may not have a chance to really do well. You can get started a few weeks earlier by starting your artemesia indoors.

Last Frost Date

On average the last frost is on February 15 in Calimesa. You can expect an average low temperature of 25°F in the coldest months of winter.

Keep in mind that USDA zone info for Calimesa is an average and the actual date of last frost is different every year. Half of the time in Calimesa it frosts late in the year after February 15 so make sure that you are prepared to protect your artemesia if you have a surprise late frost.

USDA Zone Info for Calimesa

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 Calimesa

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