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.

The USDA zone info for Providence can be reviewed to estimate when to plant oxalis.

Planting Calendar for Oxalis

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

Since oxalis do not do well in cold weather it's important to wait until after the last frost before you can plant them.

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

The last month that you can plant oxalis and expect a good harvest is probably August. You probably don't want to wait any later than that or else your oxalis may not have a chance to fully mature. If you are starting your oxalis indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

On average the last frost is on April 15 in Providence. It might get as low as -5°F during the coldest months of winter.

Since the USDA zone info for Providence is not always accurate the actual date of last frost will vary from year to year. Half of the time in Providence you get surprised by a frost after April 15 so make sure that you are prepared to protect your oxalis if you have a late frost.

USDA Zone Info for Providence

Here is the info for USDA Zone 6b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-5°F
Highest Expected Low	0°F

This means that on a really cold year, the coldest it will get is -5°F. On most years you should be prepared to experience lows near 0°F.

Plants to Grow in Providence

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