When to Plant Dianthus in New Cumberland, PA

The USDA Zone info is a great tool for gardeners to help us estimate your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

The USDA zone info for New Cumberland can be looked at to determine when it's a good idea to plant dianthus.


Planting Calendar for Dianthus

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

Dianthus are one of those plants that can tolerate a little bit of cold weather which tells us that you can plant them earlier than other plants that might not handle the cold.

JanFebMarAprMayJunJulAugSepOctNovDec
Legend 
A good time to plant dianthus
Possibly ok, but a risky time to plant dianthus
Probably not a good time to plant dianthus

The earliest that you can plant dianthus in New Cumberland 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. If you wait any later than that and your dianthus may not have a chance to really do well. Starting your dianthus indoors is a great way to get them started a little bit earlier.

Last Frost Date

On average the last frost when the weather gets warmer is on April 15 in New Cumberland. In the coldest months of winter you should expect an average low temperature of 0°F.

Keep in mind that the actual date of last frost is not always accurate because it is based on the USDA zone info for New Cumberland and it changes from year to year. Half of the time in New Cumberland it frosts late in the year after April 15 so just be sure to be ready to protect your dianthus if you have a surprise late frost.

USDA Zone Info for New Cumberland

Here is the info for USDA Zone 7a.

Average Date of Last Frost (spring)April 15
Average Date of First Frost (fall)October 15
Lowest Expected Low0°F
Highest Expected Low5°F

This means that on a really cold year, the coldest it will get is 0°F. On most years you should be prepared to experience lows near 5°F.

Plants to Grow in New Cumberland

You may be interested in your other planting guides for New Cumberland.