The USDA Zone info is a great tool for gardeners to help us determine your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

By checking out the USDA zone info for Zone 12b you should be able to figure out when it's a good idea to plant coreopsis.

Planting Calendar for Coreopsis

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

You can plant coreopsis a bit earlier in the year because they do well in moderate cold.

The earliest that you can plant coreopsis in Zone 12b 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 coreopsis and expect a good harvest is probably November. If you wait any later than that and your coreopsis may not have a chance to really do well. If you are starting your coreopsis indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

In Zone 12b it never frosts. In the coldest months of winter you can expect an average low temperature of 55°F.

Remember that the actual date of last frost is an average because it is based on the USDA zone info for Zone 12b and it can change quite a bit from year to year. Since it never frosts in Zone 12b you do not have to be ready to cover your coreopsis in the event of a late frost.

USDA Zone Info for Zone 12b

Here is the info for USDA Zone 12b.

Average Date of Last Frost (spring)	Never
Average Date of First Frost (fall)	Never
Lowest Expected Low	55°F
Highest Expected Low	60°F

This means that on a really cold year, the coldest it will get is 55°F. On most years you should be prepared to experience lows near 60°F.

Plants to Grow in Zone 12b

You may be interested in your other planting guides for Zone 12b.