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.

In Iron Mountain you can figure out when it's possible to plant painted tongues by looking at the USDA zone info.

Planting Calendar for Painted Tongues

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

You can not plant painted tongues until after all chance of frost has passed because they do not do well in cold weather.

The earliest that you can plant painted tongues 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 painted tongues and expect a good harvest is probably August. You probably don't want to wait any later than that or else your painted tongues may not have a chance to fully mature. You can get started a couple of weeks earlier by starting your painted tongues indoors.

Last Frost Date

On average the last frost is on May 15 in Iron Mountain. You should expect an average low temperature of -30°F in the coldest months of winter.

It's important to remember that USDA zone info for Iron Mountain is just an average and the actual date of last frost is different every year. Half of the time in Iron Mountain there is a last frost after May 15 so make sure that you are prepared to protect your painted tongues if you have one of those late frosts.

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.