One of the first steps you take when you are estimating 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 making a decision about when you can plant mecardonia is to refer to the USDA zone info for Ann Arbor.

Planting Calendar for Mecardonia

Frost tolerance for mecardonia:	Not tolerant of frost.
When to plant:	After all chance of frost has passed.

It's a bad idea to plant mecardonia until after all chance of frost has passed because they require warm weather.

The earliest that you can plant mecardonia in Ann Arbor is April. However, you really should wait until May if you don't want to take any chances.

The last month that you can plant mecardonia and expect a good harvest is probably August. Any later than that and your mecardonia may not have a chance to fully mature. You can get started a little bit earlier by starting your mecardonia indoors.

Last Frost Date

On average the last frost is on April 15 in Ann Arbor. In the coldest months of winter you should expect an average low temperature of -10°F.

Since the USDA zone info for Ann Arbor is not always accurate the actual date of last frost is different every year. Since half of the time in Ann Arbor last frost occurs after April 15 be ready to cover your mecardonia in the event of one of those late frosts.

USDA Zone Info for Ann Arbor

Here is the info for USDA Zone 6a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-10°F
Highest Expected Low	-5°F

This means that on a really cold year, the coldest it will get is -10°F. On most years you should be prepared to experience lows near -5°F.

Plants to Grow in Ann Arbor

You may be interested in your other planting guides for Ann Arbor.