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.

It's possible to figure out when you can plant morning glory by checking out the USDA zone info for Mandan.

Planting Calendar for Morning Glory

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

It's a bad idea to plant morning glory until after the last frost has passed because they require warm weather.

The earliest that you can plant morning glory in Mandan 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 morning glory and expect a good harvest is probably August. Any later than that and your morning glory may not have a chance to grow to maturity. You can get started a couple of weeks earlier by starting your morning glory indoors.

Last Frost Date

The average date of last frost is May 15 in Mandan. In the coldest months of winter you should expect an average low temperature of -30°F.

Keep in mind that USDA zone info for Mandan is not always accurate and the actual date of last frost is different every year. Half of the time in Mandan last frost occurs after May 15 so make sure that you are ready to cover your morning glory in the event of one of those late frosts.

USDA Zone Info for Mandan

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 Mandan

You may be interested in your other planting guides for Mandan.