The USDA Zone info is a great tool for gardeners to help us figure out your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

A common way of figuring out when it's a good idea to plant campanula is to look at the USDA zone info for Monroe.

Planting Calendar for Campanula

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

Campanula tend to make it in some cold which means that you can plant them a bit earlier in the year than other frost tender plants.

The earliest that you can plant campanula in Monroe 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. Any later than that and your campanula may not have a chance to fully mature. Starting your campanula indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

In Monroe the average date of last frost happens on April 15. In the coldest months of winter you can expect an average low temperature of 5°F.

Just be sure to remember that USDA zone info for Monroe is an average and the actual date of last frost is different every year. Half of the time in Monroe you get a frost after April 15 so just be sure to be ready to cover your campanula in the event of one of those late frosts.

USDA Zone Info for Monroe

Here is the info for USDA Zone 7b.

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

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

Plants to Grow in Monroe

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