One of the best tools that you have as gardeners to help us determine your gardening schedule is the 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 first opportunity to plant morning glory in Altoona should be figured out by referring to 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 has passed.

Since morning glory are not cold tolerant it is important to wait until after all chance of frost has passed before you can plant them.

The earliest that you can plant morning glory in Altoona 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. 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. If you are starting your morning glory indoors then you might be able to get away with starting them a few weeks earlier.

Last Frost Date

On average the last frost is on May 15 in Altoona. It might get as low as -25°F during the coldest months of winter.

Keep in mind that the actual date of last frost is an average because it is based on the USDA zone info for Altoona and it can change quite a bit from year to year. Half of the time in Altoona you get surprised by a frost after May 15 so be sure to be ready to protect your morning glory if you have a late frost.

USDA Zone Info for Altoona

Here is the info for USDA Zone 4b.

Average Date of Last Frost (spring)	May 15
Average Date of First Frost (fall)	September 15
Lowest Expected Low	-25°F
Highest Expected Low	-20°F

This means that on a really cold year, the coldest it will get is -25°F. On most years you should be prepared to experience lows near -20°F.

Plants to Grow in Altoona

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