One of the first steps you take when you are making a decision about your gardening schedule is find your USDA Zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

A way of getting a good idea when it's possible to plant evolvulus is to refer to the USDA zone info for Elmhurst.

Planting Calendar for Evolvulus

Frost tolerance for evolvulus:	Not tolerant of frost.
When to plant:	After the last frost has passed.

It's a bad idea to plant evolvulus until after the last frost because they are not cold tolerant.

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

Last Frost Date

On average the last frost when the weather gets warmer is on April 15 in Elmhurst. You can expect an average low temperature of -15°F in the coldest months of winter.

Since the USDA zone info for Elmhurst is not always accurate the actual date of last frost can change quite a bit from year to year. Half of the time in Elmhurst it frosts late in the year after April 15 so just be sure to be ready to protect your evolvulus if you have one of those late frosts.

USDA Zone Info for Elmhurst

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 Elmhurst

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