One of the first steps you take when you are getting a good idea 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.

By using the USDA zone info for Iron Mountain you will be able to determine when you can plant matricaria.

Planting Calendar for Matricaria

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

Matricaria are one of those plants that can tolerate a little bit of cold weather which means that you can get them planted earlier than other plants that might not handle the cold.

The earliest that you can plant matricaria 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 matricaria and expect a good harvest is probably August. Any later than that and your matricaria may not have a chance to grow to maturity. You can get started a little bit earlier by starting your matricaria indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on May 15 in Iron Mountain. It might get as low as -30°F during the coldest months of winter.

Since the USDA zone info for Iron Mountain is just 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 cover your matricaria 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.