The USDA Zone info is a great tool for gardeners to help us figure out your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

By using the USDA zone info for Larkspur it's possible to estimate when it's a good idea to plant chrysanthemum.

Planting Calendar for Chrysanthemum

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

It's not a good idea to plant chrysanthemum until after the last frost has passed because they are not cold tolerant.

The earliest that you can plant chrysanthemum in Larkspur 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. You probably don't want to wait any later than that or else your chrysanthemum may not have a chance to fully mature. Starting your chrysanthemum indoors is a great way to get them started a little bit earlier.

Last Frost Date

The average date of last frost is February 15 in Larkspur. In the coldest months of winter you can expect an average low temperature of 25°F.

Since the USDA zone info for Larkspur may not be accurate from year to year the actual date of last frost can change quite a bit from year to year. Half of the time in Larkspur you get a frost after February 15 so always be ready to cover your chrysanthemum in the event of a surprise late frost.

USDA Zone Info for Larkspur

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 Larkspur

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