One of the first steps you take when you are figuring out your gardening schedule is find your 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 Huron should be used to determine when it's a good idea to plant oxalis.

Planting Calendar for Oxalis

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

It's probably not a good idea to plant oxalis until after all chance of frost has passed because they are not cold tolerant.

The earliest that you can plant oxalis in Huron 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 couple of weeks earlier by starting your oxalis indoors.

Last Frost Date

In Huron the average date of last frost happens on February 15. In the coldest months of winter you can expect an average low temperature of 20°F.

It's important to remember that USDA zone info for Huron is an average and the actual date of last frost can change quite a bit from year to year. Half of the time in Huron it frosts late in the year after February 15 so make sure that you are prepared to cover your oxalis in the event of a late frost.

USDA Zone Info for Huron

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 Huron

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