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

A way of estimating when to plant winter savory is to look at the USDA zone info for Ann Arbor.

Planting Calendar for Winter Savory

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

You can plant winter savory a bit earlier in the year because they are moderately cold tolerant.

The earliest that you can plant winter savory in Ann Arbor 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 grow to maturity. If you are starting your winter savory 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 has passed is on April 15 in Ann Arbor. In the coldest months of winter you can expect an average low temperature of -10°F.

Since the USDA zone info for Ann Arbor is just an average the actual date of last frost can change quite a bit from year to year. Half of the time in Ann Arbor it frosts late in the year after April 15 so make sure that you are ready to cover your winter savory in the event of one of those late frosts.

USDA Zone Info for Ann Arbor

Here is the info for USDA Zone 6a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-10°F
Highest Expected Low	-5°F

This means that on a really cold year, the coldest it will get is -10°F. On most years you should be prepared to experience lows near -5°F.

Plants to Grow in Ann Arbor

You may be interested in your other planting guides for Ann Arbor.