Before planting it is a good idea to find your USDA Zone info to estimate your garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

The USDA zone info for Larkspur should be read to estimate when you can plant garden mums.

Planting Calendar for Garden Mums

Frost tolerance for garden mums:	Tolerant of some frost.
When to plant:	Up to 5 weeks before last frost.

Since garden mums are moderately cold tolerant you can plant them a little bit earlier in the year than other frost tender plants.

The earliest that you can plant garden mums in Larkspur is January. However, you really should wait until February if you don't want to take any chances.

The last month that you can plant garden mums and expect a good harvest is probably October. If you wait any later than that and your garden mums may not have a chance to fully mature. Starting your garden mums indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

On average the last frost when the weather gets warmer is on February 15 in Larkspur. It might get as low as 25°F during the coldest months of winter.

Since the USDA zone info for Larkspur is an average the actual date of last frost can change quite a bit from year to year. Since half of the time in Larkspur you get surprised by a frost after February 15 be ready to cover your garden mums if you have 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.