One of the best tools that you have as gardeners to help us figure out 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.

A common way of figuring out when it's possible to plant chrysanthemum is to consult the USDA zone info for Cerritos.

Planting Calendar for Chrysanthemum

Frost tolerance for chrysanthemum:	Not tolerant of frost.
When to plant:	After the last frost has passed.

Chrysanthemum are not cold tolerant which tells us that you have to wait until it warms up after the last frost before you can plant them.

The earliest that you can plant chrysanthemum in Cerritos 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 chrysanthemum and expect a good harvest is probably September. If you wait any later than that and your chrysanthemum may not have a chance to really do well. Starting your chrysanthemum indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

In Cerritos the average date of last frost happens on January 31. In the coldest months of winter you can expect an average low temperature of 35°F.

Since the USDA zone info for Cerritos is an average the actual date of last frost is different every year. Half of the time in Cerritos it frosts late in the year after January 31 so just be sure to be ready to protect your chrysanthemum if you have a late frost.

USDA Zone Info for Cerritos

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 Cerritos

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