When can I plant Peas in Zone 4a

One of the best tools that we have as gardeners to help us figure out our 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 our area.

You can estimate when you can plant peas in Zone 4a by looking at the USDA zone info.


Planting Calendar for Peas

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

Peas do well in quite a bit of cold which means that you can plant them much earlier in the year than more sensitive plants.

JanFebMarAprMayJunJulAugSepOctNovDec
Legend 
A good time to plant peas
Possibly ok, but a risky time to plant peas
Probably not a good time to plant peas

The earliest that you can plant peas in Zone 4a 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. You probably don't want to wait any later than that or else your peas may not have a chance to fully mature. Starting your peas indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

The average date of last frost is May 15 in Zone 4a. We should expect an average low temperature of -30°F in the coldest months of winter.

Just be sure to remember that our actual date of last frost may not be accurate from year to year because it is based on the USDA zone info for Zone 4a and it will vary from year to year. Since half of the time in Zone 4a last frost occurs after May 15 be ready to cover your peas in the event of a late frost.

USDA Zone Info for Zone 4a

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 Zone 4a

You may be interested in our other planting guides for Zone 4a.