When can I plant Peas in Zone 1b

The USDA Zone info is a great tool for gardeners to help us determine our gardening schedule. 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 it's a good idea to plant peas in Zone 1b by reviewing 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.

Since peas are one of those plants that can tolerate quite a bit of cold weather you can plant them earlier in the year than other frost tender 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 1b is May. However, you really should wait until June if you don't want to take any chances.

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

Last Frost Date

In Zone 1b the average date of last frost happens on June 15. In the coldest months of winter we should expect an average low temperature of -55°F.

Remember that our actual date of last frost is just an average because it is based on the USDA zone info for Zone 1b and it will vary from year to year. Since half of the time in Zone 1b it frosts late in the year after June 15 be ready to cover your peas in the event of a late frost.

USDA Zone Info for Zone 1b

Here is the info for USDA Zone 1b.

Average Date of Last Frost (spring)June 15
Average Date of First Frost (fall)July 15
Lowest Expected Low-55°F
Highest Expected Low-50°F

This means that on a really cold year, the coldest it will get is -55°F. On most years you should be prepared to experience lows near -50°F.

Plants to Grow in Zone 1b

You may be interested in our other planting guides for Zone 1b.