One of the first steps you take when you are making a decision about your gardening schedule is find your USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The first chance to plant morning glory in Pullman can be estimated by checking out the USDA zone info.

Planting Calendar for Morning Glory

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

Morning Glory require warm weather which means that you really should 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 Pullman 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. Starting your morning glory indoors is a great way to get them started a little bit earlier.

Last Frost Date

On average the last frost is on April 15 in Pullman. In the coldest months of winter you can expect an average low temperature of -5°F.

It's important to remember that USDA zone info for Pullman is an average and the actual date of last frost changes from year to year. Since half of the time in Pullman last frost occurs after April 15 be ready to protect your morning glory in the event of a surprise late frost.

USDA Zone Info for Pullman

Here is the info for USDA Zone 6b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-5°F
Highest Expected Low	0°F

This means that on a really cold year, the coldest it will get is -5°F. On most years you should be prepared to experience lows near 0°F.

Plants to Grow in Pullman

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