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

It's possible to estimate when it's possible to plant elephant ears by reviewing the USDA zone info for Mount Prospect.

Planting Calendar for Elephant Ears

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

Since elephant ears are not cold tolerant it's necessary to wait until after the last frost before you can plant them.

The earliest that you can plant elephant ears in Mount Prospect 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 elephant ears and expect a good harvest is probably August. You probably don't want to wait any later than that or else your elephant ears may not have a chance to grow to maturity. If you are starting your elephant ears indoors then you might be able to get away with starting them a few weeks earlier.

Last Frost Date

In Mount Prospect the average date of last frost happens on April 15. In the coldest months of winter you should expect an average low temperature of -15°F.

Since the USDA zone info for Mount Prospect is an average the actual date of last frost can change quite a bit from year to year. Half of the time in Mount Prospect you get a frost after April 15 so be sure to be ready to protect your elephant ears if you have one of those late frosts.

USDA Zone Info for Mount Prospect

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 Mount Prospect

You may be interested in your other planting guides for Mount Prospect.