One of the best tools that you have as gardeners to help us estimate your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

It's possible to estimate when it's a good idea to plant black eyed susans by using the USDA zone info for Carlisle.

Planting Calendar for Black Eyed Susans

Frost tolerance for black eyed susans:	Not tolerant of frost.
When to plant:	After the last frost.

Black Eyed Susans do not do well in cold weather which means that you really should wait until it warms up after the last frost before you can plant them.

The earliest that you can plant black eyed susans in Carlisle is April. However, you really should wait until May if you don't want to take any chances.

The last month that you can plant black eyed susans and expect a good harvest is probably August. You probably don't want to wait any later than that or else your black eyed susans may not have a chance to grow to maturity. You can get started a few weeks earlier by starting your black eyed susans indoors.

Last Frost Date

The average date of last frost is April 15 in Carlisle. It might get as low as -5°F during the coldest months of winter.

Since the USDA zone info for Carlisle may not be accurate from year to year the actual date of last frost changes from year to year. Since half of the time in Carlisle you get surprised by a frost after April 15 be ready to cover your black eyed susans in the event of a late frost.

USDA Zone Info for Carlisle

Here is the info for USDA Zone 6b.

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

Plants to Grow in Carlisle

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