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

The first opportunity to plant hamburg root parsley in Watertown should be estimated by reviewing the USDA zone info.

Planting Calendar for Hamburg root parsley

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

Hamburg root parsley do well in moderate cold which tells us that you can plant them earlier than more sensitive plants.

The earliest that you can plant hamburg root parsley 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 hamburg root parsley and expect a good harvest is probably September. Any later than that and your hamburg root parsley may not have a chance to fully mature. You can get started a little bit earlier by starting your hamburg root parsley indoors.

Last Frost Date

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

Remember that the actual date of last frost is just an average because it is based on the USDA zone info for Watertown and it 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 hamburg root parsley if you have a 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.