One of the first steps you take when you are estimating 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 first chance to plant chinese chives in Berne can be estimated by using the USDA zone info.

Planting Calendar for Chinese chives

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

Chinese chives are moderately cold tolerant which means that you can plant them a little bit earlier than more sensitive plants.

The earliest that you can plant chinese chives in Berne 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 chinese chives and expect a good harvest is probably September. You probably don't want to wait any later than that or else your chinese chives may not have a chance to grow to maturity. Starting your chinese chives indoors is a great way to get them started a little bit earlier.

Last Frost Date

The average date of last frost is April 15 in Berne. In the coldest months of winter you should expect an average low temperature of -10°F.

Since the USDA zone info for Berne is an average the actual date of last frost will vary from year to year. Half of the time in Berne it frosts late in the year after April 15 so be sure to be ready to cover your chinese chives in the event of one of those late frosts.

USDA Zone Info for Berne

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 Berne

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