When to Plant Sutera in Edwardsville, 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.

A common way of determining when you can plant sutera is to look at the USDA zone info for Edwardsville.

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Planting Calendar for Sutera

Frost tolerance for sutera: Tolerant of a very small amount of frost.
When to plant: Up to 3 weeks before last frost.

Since sutera are one of those plants that can tolerate a tiny bit of cold weather you can plant them slightly earlier in the year than more sensitive plants.

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

The earliest that you can plant sutera in Edwardsville is March. However, you really should wait until April if you don't want to take any chances.

The last month that you can plant sutera and expect a good harvest is probably August. Any later than that and your sutera may not have a chance to really do well. You can get started a couple of weeks earlier by starting your sutera indoors.

Last Frost Date

The average date of last frost is April 15 in Edwardsville. You should expect an average low temperature of -10°F in the coldest months of winter.

Remember that USDA zone info for Edwardsville is not always accurate and the actual date of last frost will vary from year to year. Half of the time in Edwardsville you get surprised by a frost after April 15 so just be sure to be ready to cover your sutera in the event of one of those late frosts.

USDA Zone Info for Edwardsville

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 Edwardsville

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