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

The first opportunity to plant zinnia in Mundelein can be figured out by checking out the USDA zone info.

Planting Calendar for Zinnia

Frost tolerance for zinnia:	Not tolerant of frost.
When to plant:	After the last frost when the weather gets warmer.

You should not plant zinnia until after the last frost because they are not cold tolerant.

The earliest that you can plant zinnia in Mundelein 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 zinnia and expect a good harvest is probably August. Any later than that and your zinnia may not have a chance to grow to maturity. Starting your zinnia indoors is a great way to get them started a little bit earlier.

Last Frost Date

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

It's important to remember that USDA zone info for Mundelein is not always accurate and the actual date of last frost will vary from year to year. Half of the time in Mundelein there is a last frost after April 15 so make sure that you are ready to cover your zinnia if you have one of those late frosts.

USDA Zone Info for Mundelein

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 Mundelein

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