One of the best tools that you have as gardeners to help us estimate 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.

The USDA zone info for Zeeland should be used to figure out when it's possible to plant campanula.

Planting Calendar for Campanula

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

Campanula do well in moderate cold which means that you can plant them earlier than plants that are more sensitive to the cold.

The earliest that you can plant campanula in Zeeland 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 really do well. You can get started a little bit earlier by starting your campanula indoors.

Last Frost Date

On average all chance of frost has passed is on April 15 in Zeeland. In the coldest months of winter you should expect an average low temperature of -10°F.

Since the USDA zone info for Zeeland is an average the actual date of last frost changes from year to year. Since half of the time in Zeeland it frosts late in the year after April 15 be ready to protect your campanula in the event of a late frost.

USDA Zone Info for Zeeland

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 Zeeland

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