When to Plant Plectranthus in Edwardsville, IL

The USDA Zone info is a great tool for gardeners to help us determine your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

You can determine when you can plant plectranthus in Edwardsville by checking out the USDA zone info.

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Planting Calendar for Plectranthus

Frost tolerance for plectranthus: Not tolerant of frost.
When to plant: After the last frost.

It's probably not a good idea to plant plectranthus until after the last frost when the weather gets warmer because they require warm weather.

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

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

The last month that you can plant plectranthus and expect a good harvest is probably August. You probably don't want to wait any later than that or else your plectranthus may not have a chance to really do well. If you are starting your plectranthus indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

In Edwardsville the average date of last frost happens on April 15. You can expect an average low temperature of -10°F in the coldest months of winter.

Since the USDA zone info for Edwardsville is not always accurate 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 make sure that you are ready to cover your plectranthus if you have a surprise late frost.

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.