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 determining when it's the best time to plant argyranthemum is to check out the USDA zone info for California City.

Planting Calendar for Argyranthemum

Frost tolerance for argyranthemum:	Not tolerant of frost.
When to plant:	After the last frost.

Since argyranthemum require warm weather you must wait until after the last frost when the weather gets warmer before you can plant them.

The earliest that you can plant argyranthemum in California City is April. However, you really should wait until May if you don't want to take any chances.

The last month that you can plant argyranthemum and expect a good harvest is probably August. You probably don't want to wait any later than that or else your argyranthemum may not have a chance to grow to maturity. You can get started a little bit earlier by starting your argyranthemum indoors.

Last Frost Date

In California City the average date of last frost happens on March 15. It might get as low as 15°F during the coldest months of winter.

Since the USDA zone info for California City is an average the actual date of last frost will vary from year to year. Since half of the time in California City you get surprised by a frost after March 15 be ready to protect your argyranthemum in the event of a surprise late frost.

USDA Zone Info for California City

Here is the info for USDA Zone 8b.

Average Date of Last Frost (spring)	March 15
Average Date of First Frost (fall)	November 15
Lowest Expected Low	15°F
Highest Expected Low	20°F

This means that on a really cold year, the coldest it will get is 15°F. On most years you should be prepared to experience lows near 20°F.

Plants to Grow in California City

You may be interested in your other planting guides for California City.