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.

The first opportunity to plant skullcap in Moscow should be estimated by using 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 require warm weather it is necessary to wait until after the last frost before you can plant them.

The earliest that you can plant skullcap in Moscow 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. You probably don't want to wait any later than that or else your skullcap may not have a chance to really do well. You can get started a few weeks earlier by starting your skullcap indoors.

Last Frost Date

The average date of last frost is April 15 in Moscow. In the coldest months of winter you should expect an average low temperature of -10°F.

Always keep in mind that USDA zone info for Moscow is an average and the actual date of last frost changes from year to year. Since half of the time in Moscow last frost occurs after April 15 be ready to protect your skullcap in the event of a surprise late frost.

USDA Zone Info for Moscow

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 Moscow

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