Before planting it is a good idea to find your USDA Zone info to determine your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The USDA zone info for Watertown can be used to estimate when you can plant firebush.

Planting Calendar for Firebush

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

Since firebush are not cold tolerant you really should wait until after the last frost has passed before you can plant them.

The earliest that you can plant firebush 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 firebush and expect a good harvest is probably August. You probably don't want to wait any later than that or else your firebush may not have a chance to fully mature. You can get started a little bit earlier by starting your firebush indoors.

Last Frost Date

On average the last frost has passed is on April 15 in Watertown. In the coldest months of winter you should expect an average low temperature of -20°F.

Remember that USDA zone info for Watertown is just an average and the actual date of last frost will vary from year to year. Since half of the time in Watertown you get a frost after April 15 be ready to cover your firebush in the event of a surprise late frost.

USDA Zone Info for Watertown

Here is the info for USDA Zone 5a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-20°F
Highest Expected Low	-15°F

This means that on a really cold year, the coldest it will get is -20°F. On most years you should be prepared to experience lows near -15°F.

Plants to Grow in Watertown

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