Before planting it is a good idea to find your USDA Zone info to figure out 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.

In Altoona you can determine when it's the best time to plant abutilon by looking at the USDA zone info.

Planting Calendar for Abutilon

Frost tolerance for abutilon:	Not tolerant of frost.
When to plant:	After the last frost has passed.

It's a bad idea to plant abutilon until after the last frost has passed because they do not do well in cold weather.

The earliest that you can plant abutilon 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 abutilon and expect a good harvest is probably August. Any later than that and your abutilon may not have a chance to really do well. Starting your abutilon indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

In Altoona the average date of last frost happens on May 15. In the coldest months of winter you should expect an average low temperature of -25°F.

Since the USDA zone info for Altoona is just an average the actual date of last frost will vary from year to year. Half of the time in Altoona you get surprised by a frost after May 15 so make sure that you are prepared to cover your abutilon if you have one of those late frosts.

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.