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.

A way of determining when it's a good idea to plant xerianthemum is to examine the USDA zone info for Zone 13b.

Planting Calendar for Xerianthemum

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

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

The earliest that you can plant xerianthemum in Zone 13b 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 xerianthemum and expect a good harvest is probably November. If you wait any later than that and your xerianthemum may not have a chance to fully mature. Starting your xerianthemum indoors is a great way to get them started a few weeks earlier.

Last Frost Date

In Zone 13b it never frosts. You can expect an average low temperature of 65°F in the coldest months of winter.

Always keep in mind that USDA zone info for Zone 13b is not always accurate and the actual date of last frost will vary from year to year. Since it never frosts in Zone 13b you do not have to be ready to cover your xerianthemum in the event of a surprise late frost.

USDA Zone Info for Zone 13b

Here is the info for USDA Zone 13b.

Average Date of Last Frost (spring)	Never
Average Date of First Frost (fall)	Never
Lowest Expected Low	65°F
Highest Expected Low	70°F

This means that on a really cold year, the coldest it will get is 65°F. On most years you should be prepared to experience lows near 70°F.

Plants to Grow in Zone 13b

You may be interested in your other planting guides for Zone 13b.