Before planting it is a good idea to find your USDA Zone info to determine 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.

The earliest that you can plant skullcap in Greensburg should be determined by checking out the USDA zone info.

Planting Calendar for Skullcap

Frost tolerance for skullcap:	Not tolerant of frost.
When to plant:	After all chance of frost has passed.

Since skullcap are not cold tolerant it's necessary to wait until after all chance of frost has passed before you can plant them.

The earliest that you can plant skullcap in Greensburg 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 skullcap and expect a good harvest is probably August. If you wait any later than that and your skullcap may not have a chance to fully mature. Starting your skullcap 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 Greensburg. You should expect an average low temperature of -10°F in the coldest months of winter.

Since the USDA zone info for Greensburg is just an average the actual date of last frost is different every year. Half of the time in Greensburg it frosts late in the year after April 15 so always be ready to cover your skullcap if you have one of those late frosts.

USDA Zone Info for Greensburg

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 Greensburg

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