One of the best tools that you have as gardeners to help us figure out 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.

A common way of estimating when it's possible to plant scutellaria is to check out the USDA zone info for Watertown.

Planting Calendar for Scutellaria

Frost tolerance for scutellaria:	Not tolerant of frost.
When to plant:	After the last frost has passed.

Scutellaria are not cold tolerant which tells us that you really should wait until it warms up after the last frost when the weather gets warmer before you can plant them.

The earliest that you can plant scutellaria in Watertown 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 scutellaria and expect a good harvest is probably August. You probably don't want to wait any later than that or else your scutellaria may not have a chance to grow to maturity. You can get started a couple of weeks earlier by starting your scutellaria indoors.

Last Frost Date

The average date of last frost is April 15 in Watertown. In the coldest months of winter you can expect an average low temperature of -5°F.

It's important to remember that USDA zone info for Watertown is not always accurate and the actual date of last frost is different every year. Since half of the time in Watertown it frosts late in the year after April 15 be ready to cover your scutellaria in the event of one of those late frosts.

USDA Zone Info for Watertown

Here is the info for USDA Zone 6b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-5°F
Highest Expected Low	0°F

This means that on a really cold year, the coldest it will get is -5°F. On most years you should be prepared to experience lows near 0°F.

Plants to Grow in Watertown

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