When to Plant Dahlias in Farrell, PA

One of the best tools that you have as gardeners to help us estimate your gardening schedule is the USDA zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

In Farrell you can figure out when you can plant dahlias by reviewing the USDA zone info.


Planting Calendar for Dahlias

Frost tolerance for dahlias: Not tolerant of frost.
When to plant: After the last frost.

It's not a good idea to plant dahlias until after the last frost because they require warm weather.

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

The earliest that you can plant dahlias in Farrell 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 dahlias and expect a good harvest is probably August. If you wait any later than that and your dahlias may not have a chance to really do well. You can get started a few weeks earlier by starting your dahlias indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on April 15 in Farrell. In the coldest months of winter you should expect an average low temperature of -10°F.

Remember that USDA zone info for Farrell may not be accurate from year to year and the actual date of last frost will vary from year to year. Since half of the time in Farrell you get surprised by a frost after April 15 be ready to cover your dahlias in the event of a late frost.

USDA Zone Info for Farrell

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 Farrell

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