When to Plant Winter Savory in Willowbrook, IL

One of the best tools that you have as gardeners to help us determine your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The USDA zone info for Willowbrook should be used to figure out when it's the best time 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 a bit earlier in the year than other frost tender plants.

JanFebMarAprMayJunJulAugSepOctNovDec
Legend 
A good time to plant winter savory
Possibly ok, but a risky time to plant winter savory
Probably not a good time to plant winter savory

The earliest that you can plant winter savory in Willowbrook 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. 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. Starting your winter savory indoors is a great way to get them started a few weeks earlier.

Last Frost Date

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

Remember that USDA zone info for Willowbrook is just an average and the actual date of last frost will vary from year to year. Half of the time in Willowbrook 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 a late frost.

USDA Zone Info for Willowbrook

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 Willowbrook

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