The USDA Zone info is a great tool for gardeners to help us figure out your gardening schedule. 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 estimating when it's a good idea to plant abutilon is to examine the USDA zone info for Cupertino.

Planting Calendar for Abutilon

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

Since abutilon do not do well in cold weather you must wait until after the last frost when the weather gets warmer before you can plant them.

The earliest that you can plant abutilon in Cupertino is March. However, you really should wait until April if you don't want to take any chances.

The last month that you can plant abutilon and expect a good harvest is probably September. You probably don't want to wait any later than that or else your abutilon may not have a chance to grow to maturity. You can get started a few weeks earlier by starting your abutilon indoors.

Last Frost Date

In Cupertino the average date of last frost happens on February 15. It might get as low as 25°F during the coldest months of winter.

Keep in mind that USDA zone info for Cupertino is an average and the actual date of last frost can change quite a bit from year to year. Half of the time in Cupertino it frosts late in the year after February 15 so make sure that you are ready to cover your abutilon in the event of a late frost.

USDA Zone Info for Cupertino

Here is the info for USDA Zone 9b.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	25°F
Highest Expected Low	30°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 30°F.

Plants to Grow in Cupertino

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