One of the best tools that you have as gardeners to help us figure out your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The USDA zone info for Minneapolis can be looked at to determine when it's a good idea to plant mustard greens.

Planting Calendar for Mustard greens

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

You can plant mustard greens a little earlier in the year because they are moderately cold tolerant.

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

The last month that you can plant mustard greens and expect a good harvest is probably August. You probably don't want to wait any later than that or else your mustard greens may not have a chance to grow to maturity. You can get started a little bit earlier by starting your mustard greens indoors.

Last Frost Date

In Minneapolis the average date of last frost happens on May 15. You can expect an average low temperature of -25°F in the coldest months of winter.

Just be sure to remember that USDA zone info for Minneapolis is just an average and the actual date of last frost is different every year. Half of the time in Minneapolis there is a last frost after May 15 so make sure that you are prepared to cover your mustard greens in the event of one of those late frosts.

USDA Zone Info for Minneapolis

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 Minneapolis

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