When can I plant Calendula in Zone 9a

Before planting it is a good idea to find our USDA Zone info to figure out our garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for our area.

By looking at the USDA zone info for Zone 9a it's a good idea to estimate when it's a good idea to plant calendula.


Planting Calendar for Calendula

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

Calendula are one of those plants that can tolerate a little bit of cold weather which tells us that you can get them planted earlier than other frost tender plants.

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

The earliest that you can plant calendula 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 calendula and expect a good harvest is probably October. If you wait any later than that and your calendula may not have a chance to really do well. You can get started a little bit earlier by starting your calendula indoors.

Last Frost Date

The average date of last frost is February 15 in Zone 9a. It might get as low as 20°F during the coldest months of winter.

Keep in mind that USDA zone info for Zone 9a is not always accurate and our actual date of last frost is different every year. Half of the time in Zone 9a we get surprised by a frost after February 15 so make sure that you are ready to protect your calendula if we have 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.