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.

One way of figuring out when it's the best time to plant chrysanthemum is to consult the USDA zone info for Walnut Creek.

Planting Calendar for Chrysanthemum

Frost tolerance for chrysanthemum:	Not tolerant of frost.
When to plant:	After the last frost when the weather gets warmer.

Chrysanthemum require warm weather which means that you must wait until it warms up after all chance of frost has passed before you can plant them.

The earliest that you can plant chrysanthemum in Walnut Creek 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 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 fully mature. You can get started a little bit earlier by starting your chrysanthemum indoors.

Last Frost Date

On average the last frost has passed is on February 15 in Walnut Creek. In the coldest months of winter you can expect an average low temperature of 25°F.

Just be sure to remember that USDA zone info for Walnut Creek is an average and the actual date of last frost changes from year to year. Since half of the time in Walnut Creek last frost occurs after February 15 be ready to protect your chrysanthemum if you have one of those late frosts.

USDA Zone Info for Walnut Creek

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 Walnut Creek

You may be interested in your other planting guides for Walnut Creek.