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.

The best time to plant mecardonia in Iowa City should be figured out by looking at the USDA zone info.

Planting Calendar for Mecardonia

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

It's probably not a good idea to plant mecardonia until after the last frost when the weather gets warmer because they do not do well in cold weather.

The earliest that you can plant mecardonia in Iowa City 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 grow to maturity. You can get started a little bit earlier by starting your mecardonia indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on April 15 in Iowa City. You can expect an average low temperature of -15°F in the coldest months of winter.

Since the USDA zone info for Iowa City may not be accurate from year to year the actual date of last frost is different every year. Since half of the time in Iowa City it frosts late in the year after April 15 be ready to protect your mecardonia in the event of a late frost.

USDA Zone Info for Iowa City

Here is the info for USDA Zone 5b.

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

This means that on a really cold year, the coldest it will get is -15°F. On most years you should be prepared to experience lows near -10°F.

Plants to Grow in Iowa City

You may be interested in your other planting guides for Iowa City.