One of the best tools that you have as gardeners to help us determine 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 chance to plant field peas in Bismarck should be figured out by referring to the USDA zone info.

Planting Calendar for Field Peas

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

You can plant field peas a little earlier in the year because they are one of those plants that can tolerate a little bit of cold weather.

The earliest that you can plant field peas in Bismarck 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 field peas and expect a good harvest is probably August. Any later than that and your field peas may not have a chance to grow to maturity. You can get started a few weeks earlier by starting your field peas indoors.

Last Frost Date

On average the last frost has passed is on May 15 in Bismarck. It might get as low as -30°F during the coldest months of winter.

It's important to remember that USDA zone info for Bismarck is an average and the actual date of last frost is different every year. Since half of the time in Bismarck you get a frost after May 15 be ready to protect your field peas if you have one of those late frosts.

USDA Zone Info for Bismarck

Here is the info for USDA Zone 4a.

Average Date of Last Frost (spring)	May 15
Average Date of First Frost (fall)	September 15
Lowest Expected Low	-30°F
Highest Expected Low	-25°F

This means that on a really cold year, the coldest it will get is -30°F. On most years you should be prepared to experience lows near -25°F.

Plants to Grow in Bismarck

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