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

You can determine when it's the best time to plant zinnia in Zone 13b by referring to the USDA zone info.

Planting Calendar for Zinnia

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

Since zinnia do not do well in cold weather you have to wait until after the last frost before you can plant them.

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

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.

It's important to remember that USDA zone info for Zone 13b is just an average and the actual date of last frost is different every year. Since it never frosts in Zone 13b you do not have to be ready to protect your zinnia 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.