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.

A common way of estimating when it's a good idea to plant oxalis is to refer to the USDA zone info for Aberdeen.

Planting Calendar for Oxalis

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

It's a bad idea to plant oxalis until after the last frost when the weather gets warmer because they are not cold tolerant.

The earliest that you can plant oxalis in Aberdeen 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 really do well. You can get started a little bit earlier by starting your oxalis indoors.

Last Frost Date

The average date of last frost is February 15 in Aberdeen. In the coldest months of winter you can expect an average low temperature of 20°F.

Always keep in mind that the actual date of last frost is not always accurate because it is based on the USDA zone info for Aberdeen and it changes from year to year. Half of the time in Aberdeen you get surprised by a frost after February 15 so just be sure to be ready to protect your oxalis in the event of a late frost.

USDA Zone Info for Aberdeen

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 Aberdeen

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