The USDA Zone info is a great tool for gardeners to help us determine your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

It's possible to figure out when it's the best time to plant calliopsis by referring to the USDA zone info for Zone 12b.

Planting Calendar for Calliopsis

Frost tolerance for calliopsis:	Not tolerant of frost.
When to plant:	After the last frost has passed.

Since calliopsis are not cold tolerant you really should wait until after all chance of frost has passed before you can plant them.

The earliest that you can plant calliopsis 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 calliopsis and expect a good harvest is probably November. If you wait any later than that and your calliopsis may not have a chance to grow to maturity. You can get started a little bit earlier by starting your calliopsis indoors.

Last Frost Date

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

Keep in mind that USDA zone info for Zone 12b is just an average and the actual date of last frost is different every year. Since it never frosts in Zone 12b you do not have to be ready to protect your calliopsis if you have a surprise 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.