One of the first steps you take when you are estimating your gardening schedule is find your 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 best time to plant corn salad in Iron Mountain should 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 all chance of frost has passed.

It's probably not a good idea to plant corn salad until after the last frost when the weather gets warmer because they require warm weather.

The earliest that you can plant corn salad in Iron Mountain 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. If you wait any later than that and your corn salad may not have a chance to really do well. You can get started a couple of weeks earlier by starting your corn salad indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on May 15 in Iron Mountain. In the coldest months of winter you can expect an average low temperature of -30°F.

Since the USDA zone info for Iron Mountain may not be accurate from year to year the actual date of last frost can change quite a bit from year to year. Half of the time in Iron Mountain last frost occurs after May 15 so make sure that you are prepared to cover your corn salad in the event of a surprise late frost.

USDA Zone Info for Iron Mountain

Here is the info for USDA Zone 4a.

Average Date of Last Frost (spring)	May 15
Average Date of First Frost (fall)	September 15
Lowest Expected Low	-30°F
Highest Expected Low	-25°F

This means that on a really cold year, the coldest it will get is -30°F. On most years you should be prepared to experience lows near -25°F.

Plants to Grow in Iron Mountain

You may be interested in your other planting guides for Iron Mountain.