When can I plant Chrysanthemums in Zone 9b

One of the first steps we take when we are figuring out our gardening schedule is find our USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for our area.

The first opportunity to plant chrysanthemums in Zone 9b should be determined by reviewing the USDA zone info.


Planting Calendar for Chrysanthemums

Frost tolerance for chrysanthemums: Tolerant of a very small amount of frost.
When you should plant them: Up to 3 weeks before last frost.

Since chrysanthemums are one of those plants that can tolerate a tiny bit of cold weather you can plant them just a tiny bit earlier in the year than more sensitive plants.

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

The earliest that you can plant chrysanthemums in Zone 9b is February. However, you really should wait until March if you don't want to take any chances.

The last month that you can plant chrysanthemums and expect a good harvest is probably September. Any later than that and your chrysanthemums may not have a chance to really do well. You can get started a little bit earlier by starting your chrysanthemums indoors.

Last Frost Date

On average the last frost is on February 15 in Zone 9b. In the coldest months of winter we should expect an average low temperature of 25°F.

Keep in mind that our actual date of last frost is not always accurate because it is based on the USDA zone info for Zone 9b and it changes from year to year. Since half of the time in Zone 9b last frost occurs after February 15 be ready to protect your chrysanthemums in the event of a late frost.

USDA Zone Info for Zone 9b

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 Low25°F
Highest Expected Low30°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 Zone 9b

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