Before planting it is a good idea to find your USDA Zone info to figure out your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

One way of making a decision about when it's a good idea to plant morning glory is to refer to the USDA zone info for Rock Island.

Planting Calendar for Morning Glory

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

Morning Glory require warm weather which means that you must wait until it warms up after all chance of frost has passed before you can plant them.

The earliest that you can plant morning glory in Rock Island 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. Any later than that and your morning glory may not have a chance to fully mature. You can get started a few weeks earlier by starting your morning glory indoors.

Last Frost Date

In Rock Island the average date of last frost happens on April 15. In the coldest months of winter you should expect an average low temperature of -15°F.

Always keep in mind that USDA zone info for Rock Island is an average and the actual date of last frost will vary from year to year. Since half of the time in Rock Island you get a frost after April 15 be ready to cover your morning glory if you have a late frost.

USDA Zone Info for Rock Island

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 Rock Island

You may be interested in your other planting guides for Rock Island.