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When to Plant Oxalis in Punxsutawney, PA

One of the best tools that you have as gardeners to help us determine 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.

By reviewing the USDA zone info for Punxsutawney it's possible to estimate 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 all chance of frost has passed.

Oxalis do not do well in cold weather which tells us that it is necessary to wait until it warms up after the last frost 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 Punxsutawney 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. If you are starting your oxalis indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

The average date of last frost is April 15 in Punxsutawney. You can expect an average low temperature of -15°F in the coldest months of winter.

Keep in mind that the actual date of last frost is not always accurate because it is based on the USDA zone info for Punxsutawney and it can change quite a bit from year to year. Since half of the time in Punxsutawney there is a last frost after April 15 be ready to protect your oxalis if you have one of those late frosts.

USDA Zone Info for Punxsutawney

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 Punxsutawney

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