One of the best tools that you have as gardeners to help us determine 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.

A way of determining when it's the best time to plant dill is to look at the USDA zone info for Duluth.

Planting Calendar for Dill

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

Dill do ok in moderate cold which tells us that you can start planting them slightly earlier than more sensitive plants.

The earliest that you can plant dill 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 dill and expect a good harvest is probably August. Any later than that and your dill may not have a chance to really do well. If you are starting your dill indoors then you might be able to get away with starting them a couple of weeks earlier.

Last Frost Date

On average the last frost is on May 15 in Duluth. It might get as low as -30°F during the coldest months of winter.

Remember that the actual date of last frost is not always accurate because it is based on the USDA zone info for Duluth and it changes from year to year. Since half of the time in Duluth there is a last frost after May 15 be ready to cover your dill if you have 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.