One of the first steps you take when you are getting a good idea your gardening schedule is find your USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

You can determine when it's possible to plant abutilon in Castle Rock 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.

Abutilon do not do well in cold weather which tells us that it's important to wait until it warms up after the last frost has passed before you can plant them.

The earliest that you can plant abutilon in Castle Rock 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. You probably don't want to wait any later than that or else your abutilon may not have a chance to really do well. You can get started a little bit earlier by starting your abutilon indoors.

Last Frost Date

The average date of last frost is April 15 in Castle Rock. You should expect an average low temperature of -15°F in the coldest months of winter.

Remember that USDA zone info for Castle Rock is just an average and the actual date of last frost will vary from year to year. Half of the time in Castle Rock you get a frost after April 15 so make sure that you are ready to protect your abutilon if you have a surprise late frost.

USDA Zone Info for Castle Rock

Here is the info for USDA Zone 5b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-15°F
Highest Expected Low	-10°F

This means that on a really cold year, the coldest it will get is -15°F. On most years you should be prepared to experience lows near -10°F.

Plants to Grow in Castle Rock

You may be interested in your other planting guides for Castle Rock.