One of the first steps you take when you are determining 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.

It's a good idea to estimate when it's the best time to plant campanula by using the USDA zone info for Scottdale.

Planting Calendar for Campanula

Frost tolerance for campanula:	Tolerant of some frost.
When to plant:	Up to 5 weeks before last frost.

Campanula are one of those plants that can tolerate a little bit of cold weather which tells us that you can plant them earlier than other frost tender plants.

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

The last month that you can plant campanula and expect a good harvest is probably September. You probably don't want to wait any later than that or else your campanula may not have a chance to really do well. Starting your campanula indoors is a great way to get them started a little bit earlier.

Last Frost Date

The average date of last frost is April 15 in Scottdale. In the coldest months of winter you can expect an average low temperature of -10°F.

Keep in mind that USDA zone info for Scottdale is just an average and the actual date of last frost can change quite a bit from year to year. Half of the time in Scottdale it frosts late in the year after April 15 so be sure to be ready to protect your campanula in the event of a surprise late frost.

USDA Zone Info for Scottdale

Here is the info for USDA Zone 6a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-10°F
Highest Expected Low	-5°F

This means that on a really cold year, the coldest it will get is -10°F. On most years you should be prepared to experience lows near -5°F.

Plants to Grow in Scottdale

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