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.

One way of getting a good idea when it's the best time to plant violets is to use the USDA zone info for Iron Mountain.

Planting Calendar for Violets

Frost tolerance for violets:	Tolerant of some frost.
When to plant:	Up to 5 weeks before last frost.

You can plant violets just a bit earlier in the year because they are one of those plants that can tolerate a little bit of cold weather.

The earliest that you can plant violets in Iron Mountain 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 violets and expect a good harvest is probably August. Any later than that and your violets may not have a chance to really do well. You can get started a few weeks earlier by starting your violets indoors.

Last Frost Date

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

Since the USDA zone info for Iron Mountain is not always accurate the actual date of last frost changes from year to year. Since half of the time in Iron Mountain you get surprised by a frost after May 15 be ready to cover your violets if you have a 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.