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.

The earliest that you can plant sorrel in Sunbury should be estimated by looking at 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.

Since sorrel do well in moderate cold you can plant them a little earlier in the year than plants that are more sensitive to the cold.

The earliest that you can plant sorrel in Sunbury 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 few weeks earlier by starting your sorrel indoors.

Last Frost Date

On average all chance of frost has passed is on April 15 in Sunbury. In the coldest months of winter you should expect an average low temperature of -5°F.

Since the USDA zone info for Sunbury may not be accurate from year to year the actual date of last frost changes from year to year. Half of the time in Sunbury last frost occurs after April 15 so make sure that you are ready to protect your sorrel in the event of one of those late frosts.

USDA Zone Info for Sunbury

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 Sunbury

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