One of the first steps you take when you are estimating your gardening schedule is find your USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

In Watertown you can determine when to plant poppies by using the USDA zone info.

Planting Calendar for Poppies

Frost tolerance for poppies:	Tolerant of some frost.
When to plant:	Up to 5 weeks before last frost.

Poppies are moderately cold tolerant which means that you can start planting them earlier than other frost tender plants.

The earliest that you can plant poppies in Watertown is February. However, you really should wait until March if you don't want to take any chances.

The last month that you can plant poppies and expect a good harvest is probably September. You probably don't want to wait any later than that or else your poppies may not have a chance to fully mature. Starting your poppies indoors is a great way to get them started a few weeks earlier.

Last Frost Date

On average the last frost has passed is on April 15 in Watertown. You should expect an average low temperature of -5°F in the coldest months of winter.

It's important to remember that USDA zone info for Watertown is just an average and the actual date of last frost can change quite a bit from year to year. Half of the time in Watertown you get a frost after April 15 so be sure to be ready to cover your poppies 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.