The USDA Zone info is a great tool for gardeners to help us estimate your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

By reviewing the USDA zone info for Bloomsburg you should be able to determine when it's a good idea to plant columbine.

Planting Calendar for Columbine

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

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

The earliest that you can plant columbine in Bloomsburg 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 columbine and expect a good harvest is probably September. Any later than that and your columbine may not have a chance to grow to maturity. You can get started a few weeks earlier by starting your columbine indoors.

Last Frost Date

On average the last frost has passed is on April 15 in Bloomsburg. In the coldest months of winter you can expect an average low temperature of -10°F.

Since the USDA zone info for Bloomsburg is not always accurate the actual date of last frost can change quite a bit from year to year. Since half of the time in Bloomsburg last frost occurs after April 15 be ready to cover your columbine in the event of one of those late frosts.

USDA Zone Info for Bloomsburg

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 Bloomsburg

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