When to Plant Radicchio in Mechanicsburg, PA

The USDA Zone info is a great tool for gardeners to help us figure out your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

It's a good idea to figure out when it's the best time to plant radicchio by reviewing the USDA zone info for Mechanicsburg.


Planting Calendar for Radicchio

Frost tolerance for radicchio: Tolerant of some frost.
When to plant: Up to 5 weeks before last frost.

You can plant radicchio just a bit earlier in the year because they are one of those plants that can tolerate a little bit of cold weather.

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

The earliest that you can plant radicchio in Mechanicsburg is February. However, you really should wait until March if you don't want to take any chances.

The last month that you can plant radicchio and expect a good harvest is probably September. You probably don't want to wait any later than that or else your radicchio may not have a chance to fully mature. You can get started a few weeks earlier by starting your radicchio indoors.

Last Frost Date

On average the last frost is on April 15 in Mechanicsburg. It might get as low as 0°F during the coldest months of winter.

Remember that USDA zone info for Mechanicsburg is not always accurate and the actual date of last frost is different every year. Half of the time in Mechanicsburg you get surprised by a frost after April 15 so make sure that you are prepared to protect your radicchio if you have one of those late frosts.

USDA Zone Info for Mechanicsburg

Here is the info for USDA Zone 7a.

Average Date of Last Frost (spring)April 15
Average Date of First Frost (fall)October 15
Lowest Expected Low0°F
Highest Expected Low5°F

This means that on a really cold year, the coldest it will get is 0°F. On most years you should be prepared to experience lows near 5°F.

Plants to Grow in Mechanicsburg

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