Before planting it is a good idea to find your USDA Zone info to determine your garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

A way of determining when it's possible to plant morning glory is to refer to the USDA zone info for Sun Prairie.

Planting Calendar for Morning Glory

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

Morning Glory are not cold tolerant which tells us that it's necessary to wait until it warms up after the last frost has passed before you can plant them.

The earliest that you can plant morning glory in Sun Prairie 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 morning glory and expect a good harvest is probably August. You probably don't want to wait any later than that or else your morning glory may not have a chance to grow to maturity. You can get started a little bit earlier by starting your morning glory indoors.

Last Frost Date

The average date of last frost is April 15 in Sun Prairie. It might get as low as -20°F during the coldest months of winter.

Since the USDA zone info for Sun Prairie may not be accurate from year to year the actual date of last frost will vary from year to year. Since half of the time in Sun Prairie you get a frost after April 15 be ready to protect your morning glory if you have one of those late frosts.

USDA Zone Info for Sun Prairie

Here is the info for USDA Zone 5a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-20°F
Highest Expected Low	-15°F

This means that on a really cold year, the coldest it will get is -20°F. On most years you should be prepared to experience lows near -15°F.

Plants to Grow in Sun Prairie

You may be interested in your other planting guides for Sun Prairie.