Before planting it is a good idea to find your USDA Zone info to estimate your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

In Duquesne you can figure out when it's possible to plant gayfeather by checking out the USDA zone info.

Planting Calendar for Gayfeather

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

Since gayfeather are very cold tolerant you can plant them earlier in the year than other plants that might not handle the cold.

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

Last Frost Date

On average the last frost has passed is on April 15 in Duquesne. You should expect an average low temperature of -5°F in the coldest months of winter.

It's important to remember that USDA zone info for Duquesne is an average and the actual date of last frost changes from year to year. Since half of the time in Duquesne it frosts late in the year after April 15 be ready to protect your gayfeather if you have one of those late frosts.

USDA Zone Info for Duquesne

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 Duquesne

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