When can I plant Heuchera in Evanston, IL

The USDA Zone info is a great tool for gardeners to help us determine our gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for our area.

You will be able to figure out when to plant heuchera by checking out the USDA zone info for Evanston.


Planting Calendar for Heuchera

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

Heuchera do well in moderate cold which tells us that you can get them planted earlier than other plants that might not handle the cold.

JanFebMarAprMayJunJulAugSepOctNovDec
Legend 
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 Evanston 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. If you wait any later than that and your heuchera may not have a chance to really do well. If you are starting your heuchera indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

The average date of last frost is April 15 in Evanston. It might get as low as -15°F during the coldest months of winter.

Since the USDA zone info for Evanston is just an average our actual date of last frost changes from year to year. Since half of the time in Evanston there is a last frost after April 15 be ready to protect your heuchera if we have a late frost.

USDA Zone Info for Evanston

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 Evanston

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