One of the best tools that you have as gardeners to help us estimate your gardening schedule is the USDA zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

You should be able to estimate when to plant corn salad by looking at the USDA zone info for Carbondale.

Planting Calendar for Corn salad

Frost tolerance for corn salad:	Not tolerant of frost.
When to plant:	After the last frost has passed.

Since corn salad require warm weather you need to wait until after the last frost when the weather gets warmer before you can plant them.

The earliest that you can plant corn salad in Carbondale 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 corn salad and expect a good harvest is probably August. If you wait any later than that and your corn salad may not have a chance to fully mature. If you are starting your corn salad indoors then you might be able to get away with starting them a few weeks earlier.

Last Frost Date

The average date of last frost is April 15 in Carbondale. In the coldest months of winter you can expect an average low temperature of -15°F.

Since the USDA zone info for Carbondale is just an average the actual date of last frost can change quite a bit from year to year. Half of the time in Carbondale it frosts late in the year after April 15 so always be ready to protect your corn salad if you have a late frost.

USDA Zone Info for Carbondale

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 Carbondale

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