One of the first steps you take when you are figuring out 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.

A common way of determining when it's possible to plant bell peppers is to use the USDA zone info for Iron Mountain.

Planting Calendar for Bell Peppers

Frost tolerance for bell peppers:	Not tolerant of frost.
When to plant:	After the last frost.

You can not plant bell peppers until after the last frost has passed because they do not do well in cold weather.

The earliest that you can plant bell peppers 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 bell peppers and expect a good harvest is probably August. Any later than that and your bell peppers may not have a chance to fully mature. If you are starting your bell peppers 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 May 15 in Iron Mountain. It might get as low as -30°F during the coldest months of winter.

Always keep in mind that the actual date of last frost is not always accurate because it is based on the USDA zone info for Iron Mountain and it is different every year. Half of the time in Iron Mountain it frosts late in the year after May 15 so be sure to be ready to protect your bell peppers 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.