One of the first steps you take when you are estimating your gardening schedule is find your 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.

In Duluth you can determine when it's a good idea to plant shallots by referring to the USDA zone info.

Planting Calendar for Shallots

Frost tolerance for shallots:	Tolerant of a very small amount of frost.
When to plant:	Up to 3 weeks before last frost.

Shallots are barely cold tolerant which tells us that you can get them planted just a bit earlier than other frost tender plants.

The earliest that you can plant shallots in Duluth is April. However, you really should wait until May if you don't want to take any chances.

The last month that you can plant shallots and expect a good harvest is probably August. Any later than that and your shallots may not have a chance to grow to maturity. You can get started a few weeks earlier by starting your shallots indoors.

Last Frost Date

The average date of last frost is May 15 in Duluth. In the coldest months of winter you can expect an average low temperature of -30°F.

Since the USDA zone info for Duluth is an average the actual date of last frost is different every year. Since half of the time in Duluth last frost occurs after May 15 be ready to cover your shallots in the event of one of those late frosts.

USDA Zone Info for Duluth

Here is the info for USDA Zone 4a.

Average Date of Last Frost (spring)	May 15
Average Date of First Frost (fall)	September 15
Lowest Expected Low	-30°F
Highest Expected Low	-25°F

This means that on a really cold year, the coldest it will get is -30°F. On most years you should be prepared to experience lows near -25°F.

Plants to Grow in Duluth

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