One of the best tools that you have as gardeners to help us determine your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

In Superior you can figure out when it's a good idea 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 all chance of frost has passed.

You really shouldn't plant abutilon until after all chance of frost has passed because they require warm weather.

The earliest that you can plant abutilon in Superior 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. If you wait any later than that and your abutilon may not have a chance to fully mature. Starting your abutilon indoors is a great way to get them started a few weeks earlier.

Last Frost Date

The average date of last frost is May 15 in Superior. It might get as low as -25°F during the coldest months of winter.

Since the USDA zone info for Superior is just an average the actual date of last frost will vary from year to year. Half of the time in Superior you get a frost after May 15 so be sure to be ready to cover your abutilon if you have a late frost.

USDA Zone Info for Superior

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 Superior

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