Before planting it is a good idea to find your USDA Zone info to determine your garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

In Doylestown you can determine when you can plant sorrel by checking out the USDA zone info.

Planting Calendar for Sorrel

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

Sorrel are moderately cold tolerant which means that you can plant them earlier than other frost tender plants.

The earliest that you can plant sorrel in Doylestown 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 grow to maturity. If you are starting your sorrel indoors then you might be able to get away with starting them a couple of weeks earlier.

Last Frost Date

The average date of last frost is April 15 in Doylestown. It might get as low as -5°F during the coldest months of winter.

Keep in mind that USDA zone info for Doylestown is just an average and the actual date of last frost changes from year to year. Half of the time in Doylestown last frost occurs after April 15 so make sure that you are ready to cover your sorrel in the event of a surprise late frost.

USDA Zone Info for Doylestown

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 Doylestown

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