One of the first steps you take when you are making a decision about your gardening schedule is find your USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

In Chaska you can determine when to plant mustard by looking at the USDA zone info.

Planting Calendar for Mustard

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

Since mustard are not cold tolerant you must wait until after the last frost when the weather gets warmer before you can plant them.

The earliest that you can plant mustard in Chaska 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. If you wait any later than that and your mustard may not have a chance to fully mature. You can get started a little bit earlier by starting your mustard indoors.

Last Frost Date

On average the last frost has passed is on May 15 in Chaska. In the coldest months of winter you should expect an average low temperature of -25°F.

Just be sure to remember that USDA zone info for Chaska may not be accurate from year to year and the actual date of last frost can change quite a bit from year to year. Half of the time in Chaska you get a frost after May 15 so make sure that you are prepared to protect your mustard in the event of a surprise late frost.

USDA Zone Info for Chaska

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 Chaska

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