The USDA Zone info is a great tool for gardeners to help us figure out your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

You should be able to figure out when it's possible to plant sorrel by using the USDA zone info for Monessen.

Planting Calendar for Sorrel

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

Since sorrel are one of those plants that can tolerate a little bit of cold weather you can plant them a little earlier in the year than more sensitive plants.

The earliest that you can plant sorrel in Monessen 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 sorrel and expect a good harvest is probably September. If you wait any later than that and your sorrel may not have a chance to fully mature. You can get started a couple of weeks earlier by starting your sorrel indoors.

Last Frost Date

On average all chance of frost has passed is on April 15 in Monessen. It might get as low as -5°F during the coldest months of winter.

Since the USDA zone info for Monessen is just an average the actual date of last frost will vary from year to year. Since half of the time in Monessen it frosts late in the year after April 15 be ready to protect your sorrel if you have one of those late frosts.

USDA Zone Info for Monessen

Here is the info for USDA Zone 6b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-5°F
Highest Expected Low	0°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 0°F.

Plants to Grow in Monessen

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