Before planting it is a good idea to find your USDA Zone info to estimate 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.

A common way of estimating when it's a good idea to plant black pepper is to check out the USDA zone info for Duluth.

Planting Calendar for Black pepper

Frost tolerance for black pepper:	Not tolerant of frost.
When to plant:	After the last frost.

Black pepper require warm weather which means that it's necessary to wait until it warms up after the last frost has passed before you can plant them.

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

The last month that you can plant black pepper and expect a good harvest is probably August. You probably don't want to wait any later than that or else your black pepper may not have a chance to fully mature. Starting your black pepper indoors is a great way to get them started a little bit earlier.

Last Frost Date

On average all chance of 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.

Always keep in mind that USDA zone info for Duluth is an average and the actual date of last frost will vary from year to year. Since half of the time in Duluth you get a frost after May 15 be ready to cover your black pepper in the event of a late frost.

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.