One of the best tools that you have as gardeners to help us determine your gardening schedule is the 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 possible to determine when it's possible to plant campanula by reviewing the USDA zone info for Hoffman Estates.

Planting Calendar for Campanula

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

Since campanula do well in moderate cold you can plant them a bit earlier in the year than other frost tender plants.

The earliest that you can plant campanula in Hoffman Estates 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 fully mature. You can get started a little bit earlier by starting your campanula indoors.

Last Frost Date

On average the last frost is on April 15 in Hoffman Estates. In the coldest months of winter you should expect an average low temperature of -15°F.

Since the USDA zone info for Hoffman Estates is an average the actual date of last frost can change quite a bit from year to year. Since half of the time in Hoffman Estates you get a frost after April 15 be ready to protect your campanula if you have a surprise late frost.

USDA Zone Info for Hoffman Estates

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 Hoffman Estates

You may be interested in your other planting guides for Hoffman Estates.