One of the first steps you take when you are determining 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.

It's a good idea to figure out when it's the best time to plant calla lily by checking out the USDA zone info for Elmhurst.

Planting Calendar for Calla Lily

Frost tolerance for calla lily:	Not tolerant of frost.
When to plant:	After the last frost.

It's probably a bad idea to plant calla lily until after the last frost because they do not do well in cold weather.

The earliest that you can plant calla lily 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 calla lily and expect a good harvest is probably August. If you wait any later than that and your calla lily may not have a chance to really do well. You can get started a few weeks earlier by starting your calla lily indoors.

Last Frost Date

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

It's important to remember that USDA zone info for Elmhurst is just an average and the actual date of last frost is different every year. Since half of the time in Elmhurst you get surprised by a frost after April 15 be ready to cover your calla lily in the event of 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.