One of the best tools that you have as gardeners to help us determine your gardening schedule is the 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.

The earliest that you can plant bells of ireland in Clarkston should be figured out by reviewing the USDA zone info.

Planting Calendar for Bells of Ireland

Frost tolerance for bells of ireland:	Tolerant of a very small amount of frost.
When to plant:	Up to 3 weeks before last frost.

Since bells of ireland do ok in moderate cold you can plant them a bit earlier in the year than other frost tender plants.

The earliest that you can plant bells of ireland in Clarkston is March. However, you really should wait until April if you don't want to take any chances.

The last month that you can plant bells of ireland and expect a good harvest is probably August. Any later than that and your bells of ireland may not have a chance to grow to maturity. You can get started a little bit earlier by starting your bells of ireland indoors.

Last Frost Date

On average the last frost is on April 15 in Clarkston. It might get as low as 5°F during the coldest months of winter.

Keep in mind that USDA zone info for Clarkston is not always accurate and the actual date of last frost is different every year. Half of the time in Clarkston you get surprised by a frost after April 15 so be sure to be ready to cover your bells of ireland if you have a late frost.

USDA Zone Info for Clarkston

Here is the info for USDA Zone 7b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	5°F
Highest Expected Low	10°F

This means that on a really cold year, the coldest it will get is 5°F. On most years you should be prepared to experience lows near 10°F.

Plants to Grow in Clarkston

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