Before planting it is a good idea to find your USDA Zone info to estimate your garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

By reviewing the USDA zone info for Smyrna it's a good idea to estimate when it's the best time to plant gayfeather.

Planting Calendar for Gayfeather

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

Gayfeather do well in cold which means that you can plant them a quite a bit earlier than other frost tender plants.

The earliest that you can plant gayfeather in Smyrna 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 really do well. If you are starting your gayfeather indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

On average all chance of frost has passed is on April 15 in Smyrna. In the coldest months of winter you should expect an average low temperature of 5°F.

Since the USDA zone info for Smyrna may not be accurate from year to year the actual date of last frost is different every year. Half of the time in Smyrna you get a frost after April 15 so make sure that you are ready to cover your gayfeather if you have one of those late frosts.

USDA Zone Info for Smyrna

Here is the info for USDA Zone 7b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	5°F
Highest Expected Low	10°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 10°F.

Plants to Grow in Smyrna

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