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.

In Berne you can estimate when you can plant mustard by checking out the USDA zone info.

Planting Calendar for Mustard

Frost tolerance for mustard:	Not tolerant of frost.
When to plant:	After all chance of frost has passed.

Since mustard do not do well in cold weather it's important to wait until after the last frost before you can plant them.

The earliest that you can plant mustard in Berne is April. However, you really should wait until May if you don't want to take any chances.

The last month that you can plant mustard and expect a good harvest is probably August. If you wait any later than that and your mustard may not have a chance to fully mature. You can get started a few weeks earlier by starting your mustard indoors.

Last Frost Date

On average all chance of frost has passed is on April 15 in Berne. You should expect an average low temperature of -10°F in the coldest months of winter.

Since the USDA zone info for Berne is just an average the actual date of last frost will vary from year to year. Since half of the time in Berne there is a last frost after April 15 be ready to protect your mustard in the event of a surprise late frost.

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.