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 USDA zone info for Flossmoor can be looked at to determine when it's possible to plant tropical water plants.

Planting Calendar for Tropical Water Plants

Frost tolerance for tropical water plants:	Not tolerant of frost.
When to plant:	After the last frost.

It's probably a bad idea to plant tropical water plants until after the last frost when the weather gets warmer because they are not cold tolerant.

The earliest that you can plant tropical water plants in Flossmoor 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 tropical water plants and expect a good harvest is probably August. Any later than that and your tropical water plants may not have a chance to fully mature. Starting your tropical water plants indoors is a great way to get them started a little bit earlier.

Last Frost Date

On average the last frost has passed is on April 15 in Flossmoor. In the coldest months of winter you should expect an average low temperature of -15°F.

Keep in mind that USDA zone info for Flossmoor may not be accurate from year to year and the actual date of last frost can change quite a bit from year to year. Since half of the time in Flossmoor last frost occurs after April 15 be ready to protect your tropical water plants if you have one of those late frosts.

USDA Zone Info for Flossmoor

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 Flossmoor

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