The USDA Zone info is a great tool for gardeners to help us figure out your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

The USDA zone info for Winnetka can be looked at to determine when it's possible 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.

Since winter savory are moderately cold tolerant you can plant them just a bit earlier in the year than other plants that might not handle the cold.

The earliest that you can plant winter savory in Winnetka 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. If you are starting your winter savory indoors then you might be able to get away with starting them a few weeks earlier.

Last Frost Date

On average the last frost when the weather gets warmer is on April 15 in Winnetka. In the coldest months of winter you can expect an average low temperature of -15°F.

Always keep in mind that USDA zone info for Winnetka is just an average and the actual date of last frost can change quite a bit from year to year. Half of the time in Winnetka you get a frost after April 15 so make sure that you are prepared to protect your winter savory in the event of a surprise late frost.

USDA Zone Info for Winnetka

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 Winnetka

You may be interested in your other planting guides for Winnetka.