One of the first steps you take when you are getting a good idea your gardening schedule is find your USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

You can figure out when it's a good idea to plant carnation in Williamsport by checking out the USDA zone info.

Planting Calendar for Carnation

Frost tolerance for carnation:	Very tolerant of frost.
When to plant:	Up to 7 weeks before last frost.

Carnation do well in cold which means that you can start planting them much earlier than more sensitive plants.

The earliest that you can plant carnation in Williamsport 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 carnation and expect a good harvest is probably September. If you wait any later than that and your carnation may not have a chance to grow to maturity. You can get started a little bit earlier by starting your carnation indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on April 15 in Williamsport. It might get as low as -5°F during the coldest months of winter.

Since the USDA zone info for Williamsport is an average the actual date of last frost will vary from year to year. Since half of the time in Williamsport you get surprised by a frost after April 15 be ready to cover your carnation in the event of one of those late frosts.

USDA Zone Info for Williamsport

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 Williamsport

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