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

By referring to the USDA zone info for Presidio it's possible to figure out when it's the best time to 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.

Garden Mums can survive in moderate cold which tells us that 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 Presidio 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. You probably don't want to wait any later than that or else your garden mums may not have a chance to really do well. You can get started a few weeks earlier by starting your garden mums indoors.

Last Frost Date

On average the last frost has passed is on February 15 in Presidio. In the coldest months of winter you can expect an average low temperature of 20°F.

Since the USDA zone info for Presidio is just an average the actual date of last frost changes from year to year. Since half of the time in Presidio last frost occurs after February 15 be ready to cover your garden mums if you have one of those late frosts.

USDA Zone Info for Presidio

Here is the info for USDA Zone 9a.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	20°F
Highest Expected Low	25°F

This means that on a really cold year, the coldest it will get is 20°F. On most years you should be prepared to experience lows near 25°F.

Plants to Grow in Presidio

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