One of the first steps you take when you are determining your gardening schedule is find your 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 looking at the USDA zone info for Lewistown you will be able to determine when you can plant field peas.

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 moderately cold tolerant.

The earliest that you can plant field peas in Lewistown 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. You probably don't want to wait any later than that or else your field peas may not have a chance to fully mature. You can get started a little bit earlier by starting your field peas indoors.

Last Frost Date

The average date of last frost is May 15 in Lewistown. It might get as low as -30°F during the coldest months of winter.

Keep in mind that USDA zone info for Lewistown is an average and the actual date of last frost will vary from year to year. Half of the time in Lewistown it frosts late in the year after May 15 so make sure that you are prepared to cover your field peas in the event of one of those late frosts.

USDA Zone Info for Lewistown

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 Lewistown

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