When to Plant Achimenes in Willowbrook, IL

Before planting it is a good idea to find your USDA Zone info to figure out your garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

The USDA zone info for Willowbrook should be read to estimate when it's possible to plant achimenes.


Planting Calendar for Achimenes

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

Since achimenes require warm weather it's important to wait until after all chance of frost has passed before you can plant them.

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

The earliest that you can plant achimenes in Willowbrook 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 achimenes and expect a good harvest is probably August. If you wait any later than that and your achimenes may not have a chance to really do well. If you are starting your achimenes indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

On average all chance of frost has passed is on April 15 in Willowbrook. In the coldest months of winter you can expect an average low temperature of -15°F.

Remember that USDA zone info for Willowbrook is an average and the actual date of last frost will vary from year to year. Since half of the time in Willowbrook you get surprised by a frost after April 15 be ready to cover your achimenes if you have one of those late frosts.

USDA Zone Info for Willowbrook

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 Willowbrook

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