One of the first steps you take when you are estimating your gardening schedule is find your USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

By looking at the USDA zone info for Zone 13b you should be able to estimate when you can plant oxalis.

Planting Calendar for Oxalis

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

It's probably a bad idea to plant oxalis until after the last frost because they require warm weather.

The earliest that you can plant oxalis 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 oxalis and expect a good harvest is probably November. You probably don't want to wait any later than that or else your oxalis may not have a chance to grow to maturity. If you are starting your oxalis indoors then you might be able to get away with starting them a few weeks earlier.

Last Frost Date

In Zone 13b it never frosts. It might get as low as 65°F during the coldest months of winter.

Since the USDA zone info for Zone 13b is an average 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 oxalis if you have a 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.