One of the best tools that you have as gardeners to help us estimate your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

In Xenia you can estimate when it's possible to plant skullcap by referring to the USDA zone info.

Planting Calendar for Skullcap

Frost tolerance for skullcap:	Not tolerant of frost.
When to plant:	After the last frost when the weather gets warmer.

Skullcap require warm weather which tells us that you need to wait until it warms up after the last frost has passed before you can plant them.

The earliest that you can plant skullcap in Xenia 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 really do well. Starting your skullcap indoors is a great way to get them started a little bit earlier.

Last Frost Date

On average the last frost is on April 15 in Xenia. You should expect an average low temperature of -10°F in the coldest months of winter.

Remember that USDA zone info for Xenia is not always accurate and the actual date of last frost changes from year to year. Half of the time in Xenia last frost occurs after April 15 so just be sure to be ready to cover your skullcap in the event of one of those late frosts.

USDA Zone Info for Xenia

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 Xenia

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