One of the first steps you take when you are figuring out your gardening schedule is find your 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 common way of getting a good idea when to plant argyranthemum is to use the USDA zone info for Bellflower.

Planting Calendar for Argyranthemum

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

You can not plant argyranthemum until after the last frost when the weather gets warmer because they require warm weather.

The earliest that you can plant argyranthemum in Bellflower 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 argyranthemum and expect a good harvest is probably September. Any later than that and your argyranthemum may not have a chance to fully mature. You can get started a little bit earlier by starting your argyranthemum indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on January 31 in Bellflower. You should expect an average low temperature of 35°F in the coldest months of winter.

Since the USDA zone info for Bellflower is not always accurate the actual date of last frost changes from year to year. Since half of the time in Bellflower it frosts late in the year after January 31 be ready to protect your argyranthemum in the event of a surprise late frost.

USDA Zone Info for Bellflower

Here is the info for USDA Zone 10b.

Average Date of Last Frost (spring)	January 31
Average Date of First Frost (fall)	December 15
Lowest Expected Low	35°F
Highest Expected Low	40°F

This means that on a really cold year, the coldest it will get is 35°F. On most years you should be prepared to experience lows near 40°F.

Plants to Grow in Bellflower

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