One of the best tools that you have as gardeners to help us determine your gardening schedule is the USDA zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

By referring to the USDA zone info for Bismarck you will be able to determine when it's the best time to plant peas.

Planting Calendar for Peas

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

Since peas do well in cold you can plant them earlier in the year than other frost tender plants.

The earliest that you can plant 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 peas and expect a good harvest is probably August. If you wait any later than that and your peas may not have a chance to really do well. You can get started a few weeks earlier by starting your peas indoors.

Last Frost Date

On average the last frost has passed is on May 15 in Bismarck. You can expect an average low temperature of -30°F in the coldest months of winter.

Remember that USDA zone info for Bismarck is not always accurate and the actual date of last frost is different every year. Half of the time in Bismarck there is a last frost after May 15 so just be sure to be ready to protect your peas in the event of a late frost.

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.