One of the best tools that you have as gardeners to help us figure out your gardening schedule is the USDA zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

The first chance to plant jerusalem artichokes in Minneapolis should be estimated by using the USDA zone info.

Planting Calendar for Jerusalem artichokes

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

You can plant jerusalem artichokes just a bit earlier in the year because they are one of those plants that can tolerate a little bit of cold weather.

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

Last Frost Date

On average the last frost has passed is on May 15 in Minneapolis. It might get as low as -25°F during the coldest months of winter.

Since the USDA zone info for Minneapolis is just an average the actual date of last frost is different every year. Since half of the time in Minneapolis you get a frost after May 15 be ready to protect your jerusalem artichokes if you have a surprise 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.