One of the first steps you take when you are figuring out your gardening schedule is find your 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.

One way of making a decision about when you can plant abutilon is to check out the USDA zone info for Portland.

Planting Calendar for Abutilon

Frost tolerance for abutilon:	Not tolerant of frost.
When to plant:	After the last frost when the weather gets warmer.

You should not plant abutilon until after the last frost when the weather gets warmer because they are not cold tolerant.

The earliest that you can plant abutilon in Portland 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 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. If you are starting your abutilon indoors then you might be able to get away with starting them a couple of weeks earlier.

Last Frost Date

In Portland the average date of last frost happens on April 15. You can expect an average low temperature of 0°F in the coldest months of winter.

Keep in mind that USDA zone info for Portland is an average and the actual date of last frost is different every year. Half of the time in Portland you get a frost after April 15 so just be sure to be ready to protect your abutilon in the event of a late frost.

USDA Zone Info for Portland

Here is the info for USDA Zone 7a.

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

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

Plants to Grow in Portland

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