When to Plant Coleus in Clear Lake, IA

Before planting it is a good idea to find your USDA Zone info to determine your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

By referring to the USDA zone info for Clear Lake it's possible to determine when it's possible to plant coleus.


Planting Calendar for Coleus

Frost tolerance for coleus: Not tolerant of frost.
When to plant: After all chance of frost has passed.

Coleus are not cold tolerant which tells us that you really should wait until it warms up after all chance of frost has passed before you can plant them.

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

The earliest that you can plant coleus in Clear Lake 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 coleus and expect a good harvest is probably August. Any later than that and your coleus may not have a chance to really do well. You can get started a little bit earlier by starting your coleus indoors.

Last Frost Date

On average the last frost is on April 15 in Clear Lake. In the coldest months of winter you can expect an average low temperature of -20°F.

Just be sure to remember that USDA zone info for Clear Lake is an average and the actual date of last frost is different every year. Since half of the time in Clear Lake it frosts late in the year after April 15 be ready to cover your coleus if you have a surprise late frost.

USDA Zone Info for Clear Lake

Here is the info for USDA Zone 5a.

Average Date of Last Frost (spring)April 15
Average Date of First Frost (fall)October 15
Lowest Expected Low-20°F
Highest Expected Low-15°F

This means that on a really cold year, the coldest it will get is -20°F. On most years you should be prepared to experience lows near -15°F.

Plants to Grow in Clear Lake

You may be interested in your other planting guides for Clear Lake.