Before planting it is a good idea to find your USDA Zone info to estimate your garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

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

Planting Calendar for Campanula

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

You can plant campanula just a bit earlier in the year because they are one of those plants that can tolerate a little bit of cold weather.

The earliest that you can plant campanula in Lawrenceville 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 few weeks earlier by starting your campanula indoors.

Last Frost Date

The average date of last frost is April 15 in Lawrenceville. It might get as low as -10°F during the coldest months of winter.

Always keep in mind that USDA zone info for Lawrenceville is just an average and the actual date of last frost is different every year. Since half of the time in Lawrenceville there is a last frost after April 15 be ready to cover your campanula in the event of a surprise late frost.

USDA Zone Info for Lawrenceville

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 Lawrenceville

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