The USDA Zone info is a great tool for gardeners to help us figure out your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

One way of determining when to plant oxalis is to refer to the USDA zone info for Taft.

Planting Calendar for Oxalis

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

Since oxalis require warm weather it's necessary to wait until after the last frost before you can plant them.

The earliest that you can plant oxalis in Taft is March. However, you really should wait until April if you don't want to take any chances.

The last month that you can plant oxalis and expect a good harvest is probably September. If you wait any later than that and your oxalis may not have a chance to fully mature. You can get started a couple of weeks earlier by starting your oxalis indoors.

Last Frost Date

On average all chance of frost has passed is on February 15 in Taft. It might get as low as 25°F during the coldest months of winter.

Since the USDA zone info for Taft is not always accurate the actual date of last frost is different every year. Since half of the time in Taft you get a frost after February 15 be ready to cover your oxalis if you have a surprise late frost.

USDA Zone Info for Taft

Here is the info for USDA Zone 9b.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	25°F
Highest Expected Low	30°F

This means that on a really cold year, the coldest it will get is 25°F. On most years you should be prepared to experience lows near 30°F.

Plants to Grow in Taft

You may be interested in your other planting guides for Taft.