One of the best tools that you have as gardeners to help us determine your gardening schedule is the USDA zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

It's possible to estimate when it's possible to plant skullcap by reviewing the USDA zone info for Essex Junction.

Planting Calendar for Skullcap

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

You can not plant skullcap until after the last frost has passed because they do not do well in cold weather.

The earliest that you can plant skullcap in Essex Junction is May. However, you really should wait until June 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 grow to maturity. Starting your skullcap indoors is a great way to get them started a little bit earlier.

Last Frost Date

On average the last frost has passed is on May 15 in Essex Junction. It might get as low as -25°F during the coldest months of winter.

Just be sure to remember that USDA zone info for Essex Junction may not be accurate from year to year and the actual date of last frost can change quite a bit from year to year. Half of the time in Essex Junction there is a last frost after May 15 so make sure that you are prepared to cover your skullcap if you have a surprise late frost.

USDA Zone Info for Essex Junction

Here is the info for USDA Zone 4b.

Average Date of Last Frost (spring)	May 15
Average Date of First Frost (fall)	September 15
Lowest Expected Low	-25°F
Highest Expected Low	-20°F

This means that on a really cold year, the coldest it will get is -25°F. On most years you should be prepared to experience lows near -20°F.

Plants to Grow in Essex Junction

You may be interested in your other planting guides for Essex Junction.