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.

You will be able to figure out when it's possible to plant four o' clock by looking at the USDA zone info for Mascoutah.

Planting Calendar for Four O' Clock

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

Since four o' clock require warm weather you must wait until after the last frost before you can plant them.

The earliest that you can plant four o' clock in Mascoutah 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 really do well. You can get started a few weeks earlier by starting your four o' clock indoors.

Last Frost Date

On average all chance of frost has passed is on April 15 in Mascoutah. It might get as low as 5°F during the coldest months of winter.

Since the USDA zone info for Mascoutah is just an average the actual date of last frost is different every year. Since half of the time in Mascoutah you get a frost after April 15 be ready to cover your four o' clock if you have a surprise late frost.

USDA Zone Info for Mascoutah

Here is the info for USDA Zone 7b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	5°F
Highest Expected Low	10°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 10°F.

Plants to Grow in Mascoutah

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