One of the best tools that you have as gardeners to help us estimate your gardening schedule is the USDA zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

By referring to the USDA zone info for Zone 13b it's possible to figure out when it's a good idea to plant osteospermum.

Planting Calendar for Osteospermum

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

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

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

Last Frost Date

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

Since the USDA zone info for Zone 13b may not be accurate from year to year the actual date of last frost changes from year to year. Since it never frosts in Zone 13b you do not have to be ready to protect your osteospermum in the event of one of those late frosts.

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.