The USDA Zone info is a great tool for gardeners to help us figure out your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

By using the USDA zone info for Duluth you should be able to determine when to plant winter savory.

Planting Calendar for Winter Savory

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

Winter Savory tend to make it in a little bit of cold which tells us that you can plant them a little bit earlier in the year than more sensitive plants.

The earliest that you can plant winter savory 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 winter savory and expect a good harvest is probably August. You probably don't want to wait any later than that or else your winter savory may not have a chance to grow to maturity. You can get started a little bit earlier by starting your winter savory indoors.

Last Frost Date

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

Keep in mind that USDA zone info for Duluth is just an average and the actual date of last frost is different every year. Since half of the time in Duluth you get a frost after May 15 be ready to protect your winter savory 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.