Before planting it is a good idea to find your USDA Zone info to figure out your garden schedule. 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 artichokes in Duluth should be estimated by looking at the USDA zone info.

Planting Calendar for Artichokes

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

Since artichokes do well in moderate cold you can plant them a little earlier in the year than other plants that might not handle the cold.

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

Last Frost Date

On average the last frost has passed is on May 15 in Duluth. You should expect an average low temperature of -30°F in the coldest months of winter.

It's important to remember that USDA zone info for Duluth is not always accurate and the actual date of last frost changes from year to year. Since half of the time in Duluth you get surprised by a frost after May 15 be ready to cover your artichokes if you have 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.