The USDA Zone info is a great tool for gardeners to help us estimate your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

In Perth Amboy you can determine when you can plant campanula by looking at the USDA zone info.

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 moderate cold which means that you can plant them just a bit earlier in the year than other frost tender plants.

The earliest that you can plant campanula in Perth Amboy 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 grow to maturity. If you are starting your campanula indoors then you might be able to get away with starting them a couple of weeks earlier.

Last Frost Date

In Perth Amboy the average date of last frost happens on April 15. It might get as low as 0°F during the coldest months of winter.

Since the USDA zone info for Perth Amboy is just an average the actual date of last frost can change quite a bit from year to year. Since half of the time in Perth Amboy last frost occurs after April 15 be ready to protect your campanula if you have one of those late frosts.

USDA Zone Info for Perth Amboy

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 Perth Amboy

You may be interested in your other planting guides for Perth Amboy.