One of the first steps you take when you are getting a good idea your gardening schedule is find your USDA Zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

By reviewing the USDA zone info for Rahway it's a good idea to determine when it's the best time 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.

You can plant campanula a little bit earlier in the year because they are moderately cold tolerant.

The earliest that you can plant campanula in Rahway 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. Starting your campanula indoors is a great way to get them started a few weeks earlier.

Last Frost Date

On average the last frost is on April 15 in Rahway. You can expect an average low temperature of 0°F in the coldest months of winter.

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

USDA Zone Info for Rahway

Here is the info for USDA Zone 7a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	0°F
Highest Expected Low	5°F

This means that on a really cold year, the coldest it will get is 0°F. On most years you should be prepared to experience lows near 5°F.

Plants to Grow in Rahway

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