When can I plant Garden Mums in Zone 9a

One of the best tools that we have as gardeners to help us figure out our 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 our area.

A way of figuring out when you can plant garden mums is to check out the USDA zone info for Zone 9a.


Planting Calendar for Garden Mums

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

You can plant garden mums a little bit earlier in the year because they are one of those plants that can tolerate a little bit of cold weather.

JanFebMarAprMayJunJulAugSepOctNovDec
Legend 
A good time to plant garden mums
Possibly ok, but a risky time to plant garden mums
Probably not a good time to plant garden mums

The earliest that you can plant garden mums in Zone 9a 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. Any later than that and your garden mums may not have a chance to grow to maturity. You can get started a few weeks earlier by starting your garden mums indoors.

Last Frost Date

In Zone 9a the average date of last frost happens on February 15. We should expect an average low temperature of 20°F in the coldest months of winter.

Remember that USDA zone info for Zone 9a is just an average and our actual date of last frost is different every year. Since half of the time in Zone 9a we get surprised by a frost after February 15 be ready to cover your garden mums in the event of a late frost.

USDA Zone Info for Zone 9a

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 Low20°F
Highest Expected Low25°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 Zone 9a

You may be interested in our other planting guides for Zone 9a.