One of the first steps you take when you are getting a good idea your gardening schedule is find your 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.

The USDA zone info for Butler can be reffered to in order to figure out when you can plant sorrel.

Planting Calendar for Sorrel

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

Sorrel do well in moderate cold which means that you can plant them a little bit earlier than more sensitive plants.

The earliest that you can plant sorrel in Butler 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. You can get started a little bit earlier by starting your sorrel indoors.

Last Frost Date

On average all chance of frost has passed is on April 15 in Butler. It might get as low as -10°F during the coldest months of winter.

Keep in mind that USDA zone info for Butler is not always accurate and the actual date of last frost changes from year to year. Half of the time in Butler it frosts late in the year after April 15 so just be sure to be ready to cover your sorrel in the event of a surprise late frost.

USDA Zone Info for Butler

Here is the info for USDA Zone 6a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-10°F
Highest Expected Low	-5°F

This means that on a really cold year, the coldest it will get is -10°F. On most years you should be prepared to experience lows near -5°F.

Plants to Grow in Butler

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