Before planting it is a good idea to find your USDA Zone info to estimate your garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

By looking at the USDA zone info for Dickinson you will be able to determine when you can plant oxalis.

Planting Calendar for Oxalis

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

Oxalis are not cold tolerant which means that it is necessary to wait until it warms up after the last frost when the weather gets warmer before you can plant them.

The earliest that you can plant oxalis in Dickinson 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. You probably don't want to wait any later than that or else your oxalis may not have a chance to fully mature. You can get started a little bit earlier by starting your oxalis indoors.

Last Frost Date

On average the last frost is on February 15 in Dickinson. In the coldest months of winter you can expect an average low temperature of 20°F.

Keep in mind that USDA zone info for Dickinson may not be accurate from year to year and the actual date of last frost will vary from year to year. Half of the time in Dickinson it frosts late in the year after February 15 so make sure that you are prepared to protect your oxalis in the event of a late frost.

USDA Zone Info for Dickinson

Here is the info for USDA Zone 9a.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	20°F
Highest Expected Low	25°F

This means that on a really cold year, the coldest it will get is 20°F. On most years you should be prepared to experience lows near 25°F.

Plants to Grow in Dickinson

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