One of the best tools that you have as gardeners to help us estimate 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 you can plant winter savory is to check out the USDA zone info for Winthrop Harbor.

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 do well in moderate cold which tells us that you can plant them a little bit earlier than plants that are more sensitive to the cold.

The earliest that you can plant winter savory in Winthrop Harbor is February. However, you really should wait until March 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 September. Any later than that and your winter savory may not have a chance to fully mature. You can get started a little bit earlier by starting your winter savory indoors.

Last Frost Date

The average date of last frost is April 15 in Winthrop Harbor. You should expect an average low temperature of -15°F in the coldest months of winter.

Since the USDA zone info for Winthrop Harbor is just an average the actual date of last frost will vary from year to year. Since half of the time in Winthrop Harbor it frosts late in the year after April 15 be ready to protect your winter savory if you have a late frost.

USDA Zone Info for Winthrop Harbor

Here is the info for USDA Zone 5b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-15°F
Highest Expected Low	-10°F

This means that on a really cold year, the coldest it will get is -15°F. On most years you should be prepared to experience lows near -10°F.

Plants to Grow in Winthrop Harbor

You may be interested in your other planting guides for Winthrop Harbor.