When can I plant Heuchera in Geneva, IL

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

A way of determining when it's a good idea to plant heuchera is to look at the USDA zone info for Geneva.

Planting Calendar for Heuchera

Frost tolerance for heuchera: Tolerant of some frost.
When you should plant them: Up to 5 weeks before last frost.

You can plant heuchera a little earlier in the year because they are moderately cold tolerant.

A good time to plant heuchera
Possibly ok, but a risky time to plant heuchera
Probably not a good time to plant heuchera

The earliest that you can plant heuchera in Geneva 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 heuchera and expect a good harvest is probably September. You probably don't want to wait any later than that or else your heuchera may not have a chance to fully mature. You can get started a little bit earlier by starting your heuchera indoors.

Last Frost Date

In Geneva the average date of last frost happens on April 15. It might get as low as -15°F during the coldest months of winter.

Since the USDA zone info for Geneva is just an average our actual date of last frost changes from year to year. Half of the time in Geneva we get surprised by a frost after April 15 so be sure to be ready to cover your heuchera if we have a late frost.

USDA Zone Info for Geneva

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 Geneva

You may be interested in our other planting guides for Geneva.