When to Plant Winter Savory in Silvis, 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 most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

The earliest that you can plant winter savory in Silvis should be figured out by using the USDA zone info.

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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 just a bit earlier in the year because they do well in moderate 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 Silvis 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 really do well. You can get started a couple of weeks earlier by starting your winter savory indoors.

Last Frost Date

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

Remember that the actual date of last frost is just an average because it is based on the USDA zone info for Silvis and it is different every year. Half of the time in Silvis last frost occurs after April 15 so be sure to be ready to cover your winter savory if you have one of those late frosts.

USDA Zone Info for Silvis

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 Silvis

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