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 Du Quoin can be looked at to estimate when to plant four o' clock.

Planting Calendar for Four O' Clock

Frost tolerance for four o' clock:	Not tolerant of frost.
When to plant:	After the last frost.

Since four o' clock are not cold tolerant you really should wait until after the last frost before you can plant them.

The earliest that you can plant four o' clock in Du Quoin 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 four o' clock and expect a good harvest is probably August. If you wait any later than that and your four o' clock may not have a chance to fully mature. Starting your four o' clock indoors is a great way to get them started a few weeks earlier.

Last Frost Date

The average date of last frost is April 15 in Du Quoin. It might get as low as -5°F during the coldest months of winter.

Since the USDA zone info for Du Quoin is just an average the actual date of last frost changes from year to year. Since half of the time in Du Quoin you get surprised by a frost after April 15 be ready to cover your four o' clock if you have a late frost.

USDA Zone Info for Du Quoin

Here is the info for USDA Zone 6b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-5°F
Highest Expected Low	0°F

This means that on a really cold year, the coldest it will get is -5°F. On most years you should be prepared to experience lows near 0°F.

Plants to Grow in Du Quoin

You may be interested in your other planting guides for Du Quoin.