The USDA Zone info is a great tool for gardeners to help us determine 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.

By using the USDA zone info for Grantsville you will be able to figure out when it's a good idea 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.

Since gayfeather are very cold tolerant you can plant them a lot earlier in the year than other frost tender plants.

The earliest that you can plant gayfeather in Grantsville 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 fully mature. Starting your gayfeather indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

The average date of last frost is April 15 in Grantsville. You should expect an average low temperature of 0°F in the coldest months of winter.

Remember that USDA zone info for Grantsville is just an average and the actual date of last frost can change quite a bit from year to year. Since half of the time in Grantsville you get surprised by a frost after April 15 be ready to cover your gayfeather if you have a late frost.

USDA Zone Info for Grantsville

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 Low	0°F
Highest Expected Low	5°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 Grantsville

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