One of the best tools that you have as gardeners to help us determine your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

You will be able to determine when it's a good idea to plant artemesia by checking out the USDA zone info for Joshua.

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 very little cold which tells us that you can plant them just a tiny bit earlier in the year than more sensitive plants.

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

Last Frost Date

On average the last frost when the weather gets warmer is on March 15 in Joshua. It might get as low as 10°F during the coldest months of winter.

Since the USDA zone info for Joshua is not always accurate the actual date of last frost can change quite a bit from year to year. Since half of the time in Joshua you get a frost after March 15 be ready to protect your artemesia if you have a surprise late frost.

USDA Zone Info for Joshua

Here is the info for USDA Zone 8a.

Average Date of Last Frost (spring)	March 15
Average Date of First Frost (fall)	November 15
Lowest Expected Low	10°F
Highest Expected Low	15°F

This means that on a really cold year, the coldest it will get is 10°F. On most years you should be prepared to experience lows near 15°F.

Plants to Grow in Joshua

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