When to Plant Oxalis in Chester, PA

Before planting it is a good idea to find your USDA Zone info to estimate your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

In Chester you can determine when it's a good idea to plant oxalis by referring to the USDA zone info.


Planting Calendar for Oxalis

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

You should not plant oxalis until after the last frost because they require warm weather.

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 Chester 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

The average date of last frost is April 15 in Chester. In the coldest months of winter you should expect an average low temperature of 5°F.

Since the USDA zone info for Chester is an average the actual date of last frost is different every year. Half of the time in Chester there is a last frost after April 15 so always be ready to protect your oxalis in the event of a late frost.

USDA Zone Info for Chester

Here is the info for USDA Zone 7b.

Average Date of Last Frost (spring)April 15
Average Date of First Frost (fall)October 15
Lowest Expected Low5°F
Highest Expected Low10°F

This means that on a really cold year, the coldest it will get is 5°F. On most years you should be prepared to experience lows near 10°F.

Plants to Grow in Chester

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