One of the best tools that you have as gardeners to help us figure out your gardening schedule is the 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.

You can figure out when it's the best time to plant peas in Iron Mountain by using the USDA zone info.

Planting Calendar for Peas

Frost tolerance for peas:	Very tolerant of frost.
When to plant:	Up to 7 weeks before last frost.

Peas do well in cold which tells us that you can start planting them much earlier than other plants that might not handle the cold.

The earliest that you can plant peas 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 peas and expect a good harvest is probably August. Any later than that and your peas may not have a chance to really do well. Starting your peas indoors is a great way to get them started a few weeks earlier.

Last Frost Date

In Iron Mountain the average date of last frost happens on May 15. In the coldest months of winter you can expect an average low temperature of -30°F.

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. Since half of the time in Iron Mountain you get a frost after May 15 be ready to cover your peas if you have 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.