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

By checking out the USDA zone info for Berwick you should be able to estimate when it's possible to plant kale.

Planting Calendar for Kale

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

Kale do well in moderate cold which tells us that you can start planting them earlier than other frost tender plants.

The earliest that you can plant kale in Berwick 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 kale and expect a good harvest is probably September. You probably don't want to wait any later than that or else your kale may not have a chance to fully mature. If you are starting your kale indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

In Berwick the average date of last frost happens on April 15. In the coldest months of winter you should expect an average low temperature of -5°F.

Since the USDA zone info for Berwick may not be accurate from year to year the actual date of last frost is different every year. Half of the time in Berwick last frost occurs after April 15 so just be sure to be ready to cover your kale if you have a late frost.

USDA Zone Info for Berwick

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 Berwick

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