One of the best tools that you have as gardeners to help us determine your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The USDA zone info for Mascoutah should be used to estimate when it's possible to plant scallions.

Planting Calendar for Scallions

Frost tolerance for scallions:	Tolerant of a very small amount of frost.
When to plant:	Up to 3 weeks before last frost.

Scallions can survive in very little cold which tells us that you can plant them a bit earlier in the year than other plants that might not handle the cold.

The earliest that you can plant scallions in Mascoutah is March. However, you really should wait until April if you don't want to take any chances.

The last month that you can plant scallions and expect a good harvest is probably August. If you wait any later than that and your scallions may not have a chance to grow to maturity. If you are starting your scallions indoors then you might be able to get away with starting them a few weeks earlier.

Last Frost Date

In Mascoutah the average date of last frost happens on April 15. You can expect an average low temperature of 5°F in the coldest months of winter.

Remember that USDA zone info for Mascoutah may not be accurate from year to year and the actual date of last frost will vary from year to year. Half of the time in Mascoutah last frost occurs after April 15 so always be ready to protect your scallions in the event of one of those late frosts.

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.