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 looking at the USDA zone info for Viroqua you will be able to determine when to plant mustard.

Planting Calendar for Mustard

Frost tolerance for mustard:	Not tolerant of frost.
When to plant:	After the last frost.

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 Viroqua is May. However, you really should wait until June 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. Any later than that and your mustard may not have a chance to really do well. You can get started a couple of weeks earlier by starting your mustard indoors.

Last Frost Date

The average date of last frost is May 15 in Viroqua. In the coldest months of winter you can expect an average low temperature of -25°F.

Since the USDA zone info for Viroqua may not be accurate from year to year the actual date of last frost can change quite a bit from year to year. Since half of the time in Viroqua last frost occurs after May 15 be ready to cover your mustard if you have a late frost.

USDA Zone Info for Viroqua

Here is the info for USDA Zone 4b.

Average Date of Last Frost (spring)	May 15
Average Date of First Frost (fall)	September 15
Lowest Expected Low	-25°F
Highest Expected Low	-20°F

This means that on a really cold year, the coldest it will get is -25°F. On most years you should be prepared to experience lows near -20°F.

Plants to Grow in Viroqua

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