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.

The first opportunity to plant banana in Iron Mountain should be figured out by referring to the USDA zone info.

Planting Calendar for Banana

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

Since banana do not do well in cold weather you have to wait until after all chance of frost has passed before you can plant them.

The earliest that you can plant banana 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 banana and expect a good harvest is probably August. If you wait any later than that and your banana may not have a chance to really do well. Starting your banana indoors is a great way to get them started a little bit earlier.

Last Frost Date

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

Since the USDA zone info for Iron Mountain is an average the actual date of last frost changes from year to 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 banana 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.