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When to Plant Winter Savory in Prospect Heights, IL

One of the best tools that you have as gardeners to help us figure out 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 first opportunity to plant winter savory in Prospect Heights can be figured out by checking out the USDA zone info.


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 moderate cold which tells us that you can plant them just a bit earlier in the year than other plants that might not handle the cold.

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 Prospect Heights 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. If you wait 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 few weeks earlier.

Last Frost Date

In Prospect Heights the average date of last frost happens on April 15. In the coldest months of winter you should expect an average low temperature of -15°F.

Since the USDA zone info for Prospect Heights is just an average the actual date of last frost changes from year to year. Half of the time in Prospect Heights you get surprised by a frost after April 15 so make sure that you are prepared to cover your winter savory if you have a late frost.

USDA Zone Info for Prospect Heights

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 Prospect Heights

You may be interested in your other planting guides for Prospect Heights.