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

In Punxsutawney you can figure out when it's the best time to plant dianthus by looking at the USDA zone info.

Planting Calendar for Dianthus

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

You can plant dianthus a bit earlier in the year because they do well in moderate cold.

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

Last Frost Date

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

Just be sure to remember that USDA zone info for Punxsutawney is just an average and the actual date of last frost changes from year to year. Since half of the time in Punxsutawney you get a frost after April 15 be ready to cover your dianthus in the event of a late frost.

USDA Zone Info for Punxsutawney

Here is the info for USDA Zone 5b.

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

This means that on a really cold year, the coldest it will get is -15°F. On most years you should be prepared to experience lows near -10°F.

Plants to Grow in Punxsutawney

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