One of the first steps you take when you are making a decision about 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.

One way of making a decision about when it's the best time to plant pea is to look at the USDA zone info for Watertown.

Planting Calendar for Pea

Frost tolerance for pea:	Very tolerant of frost.
When to plant:	Up to 7 weeks before last frost.

Pea tend to make it in a bit of cold which tells us that you can plant them much earlier in the year than more sensitive plants.

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

The last month that you can plant pea and expect a good harvest is probably August. Any later than that and your pea may not have a chance to grow to maturity. Starting your pea indoors is a great way to get them started a few weeks earlier.

Last Frost Date

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

Always keep in mind 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 May 15 be ready to protect your pea in the event of one of those late frosts.

USDA Zone Info for Watertown

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 Watertown

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