One of the first steps you take when you are determining 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 Minneapolis you can determine when to plant sweet woodruff by checking out the USDA zone info.

Planting Calendar for Sweet Woodruff

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

Sweet Woodruff can survive in mild cold which tells us that you can plant them a little bit earlier in the year than plants that are more sensitive to the cold.

The earliest that you can plant sweet woodruff 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 sweet woodruff and expect a good harvest is probably August. If you wait any later than that and your sweet woodruff may not have a chance to fully mature. You can get started a couple of weeks earlier by starting your sweet woodruff indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on May 15 in Minneapolis. In the coldest months of winter you can expect an average low temperature of -25°F.

Keep in mind that USDA zone info for Minneapolis is just an average and the actual date of last frost will vary from year to year. Half of the time in Minneapolis you get a frost after May 15 so always be ready to cover your sweet woodruff in the event of a late frost.

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.