When can I plant Oxalis in Cary, IL

One of the first steps we take when we are making a decision about our gardening schedule is find our USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for our area.

A way of making a decision about when it's possible to plant oxalis is to look at the USDA zone info for Cary.


Planting Calendar for Oxalis

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

Since oxalis require warm weather you need to wait until after the last frost when the weather gets warmer before you can plant them.

JanFebMarAprMayJunJulAugSepOctNovDec
Legend 
A good time to plant oxalis
Possibly ok, but a risky time to plant oxalis
Probably not a good time to plant oxalis

The earliest that you can plant oxalis in Cary 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. Starting your oxalis indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

The average date of last frost is April 15 in Cary. We should expect an average low temperature of -15°F in the coldest months of winter.

Since the USDA zone info for Cary is not always accurate our actual date of last frost is different every year. Since half of the time in Cary it frosts late in the year after April 15 be ready to cover your oxalis in the event of a late frost.

USDA Zone Info for Cary

Here is the info for USDA Zone 5b.

Average Date of Last Frost (spring)April 15
Average Date of First Frost (fall)October 15
Lowest Expected Low-15°F
Highest Expected Low-10°F

This means that on a really cold year, the coldest it will get is -15°F. On most years you should be prepared to experience lows near -10°F.

Plants to Grow in Cary

You may be interested in our other planting guides for Cary.