One of the first steps you take when you are estimating 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.

A way of figuring out when it's the best time to plant oxalis is to consult the USDA zone info for New London.

Planting Calendar for Oxalis

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

Since oxalis require warm weather you have to wait until after the last frost has passed before you can plant them.

The earliest that you can plant oxalis in New London 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 grow to maturity. You can get started a couple of weeks earlier by starting your oxalis indoors.

Last Frost Date

On average the last frost has passed is on April 15 in New London. You can expect an average low temperature of -20°F in the coldest months of winter.

It's important to remember that USDA zone info for New London may not be accurate from year to year and the actual date of last frost can change quite a bit from year to year. Since half of the time in New London last frost occurs after April 15 be ready to protect your oxalis if you have a late frost.

USDA Zone Info for New London

Here is the info for USDA Zone 5a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-20°F
Highest Expected Low	-15°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 -15°F.

Plants to Grow in New London

You may be interested in your other planting guides for New London.