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.

The first chance to plant corn salad in Elk River can be estimated by using the USDA zone info.

Planting Calendar for Corn salad

Frost tolerance for corn salad:	Not tolerant of frost.
When to plant:	After the last frost when the weather gets warmer.

Since corn salad do not do well in cold weather it's important to wait until after the last frost has passed before you can plant them.

The earliest that you can plant corn salad in Elk River is May. However, you really should wait until June 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. Any later than that and your corn salad may not have a chance to really do well. Starting your corn salad indoors is a great way to get them started a few weeks earlier.

Last Frost Date

On average the last frost is on May 15 in Elk River. You should expect an average low temperature of -25°F in the coldest months of winter.

Since the USDA zone info for Elk River is an average the actual date of last frost changes from year to year. Half of the time in Elk River you get surprised by a frost after May 15 so always be ready to cover your corn salad in the event of a surprise late frost.

USDA Zone Info for Elk River

Here is the info for USDA Zone 4b.

Average Date of Last Frost (spring)	May 15
Average Date of First Frost (fall)	September 15
Lowest Expected Low	-25°F
Highest Expected Low	-20°F

This means that on a really cold year, the coldest it will get is -25°F. On most years you should be prepared to experience lows near -20°F.

Plants to Grow in Elk River

You may be interested in your other planting guides for Elk River.