One of the first steps you take when you are getting a good idea your gardening schedule is find your USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

One way of estimating when it's possible to plant copperleaf is to look at the USDA zone info for Glen Ellyn.

Planting Calendar for Copperleaf

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

You should not plant copperleaf until after all chance of frost has passed because they do not do well in cold weather.

The earliest that you can plant copperleaf in Glen Ellyn 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 copperleaf and expect a good harvest is probably August. If you wait any later than that and your copperleaf may not have a chance to fully mature. Starting your copperleaf indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

On average the last frost has passed is on April 15 in Glen Ellyn. You can expect an average low temperature of -15°F in the coldest months of winter.

Remember that USDA zone info for Glen Ellyn is an average and the actual date of last frost can change quite a bit from year to year. Since half of the time in Glen Ellyn there is a last frost after April 15 be ready to cover your copperleaf if you have a late frost.

USDA Zone Info for Glen Ellyn

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 Glen Ellyn

You may be interested in your other planting guides for Glen Ellyn.