Before planting it is a good idea to find your USDA Zone info to figure out your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The earliest that you can plant snow peas in Zone 3b should be figured out by looking at the USDA zone info.

Planting Calendar for Snow peas

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

Since snow peas are one of those plants that can tolerate quite a bit of cold weather you can plant them quite a bit earlier in the year than plants that are more sensitive to the cold.

The earliest that you can plant snow peas in Zone 3b 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 snow peas and expect a good harvest is probably August. Any later than that and your snow peas may not have a chance to grow to maturity. You can get started a few weeks earlier by starting your snow peas indoors.

Last Frost Date

The average date of last frost is May 15 in Zone 3b. You can expect an average low temperature of -35°F in the coldest months of winter.

Keep in mind that USDA zone info for Zone 3b may not be accurate from year to year and the actual date of last frost is different every year. Since half of the time in Zone 3b there is a last frost after May 15 be ready to cover your snow peas in the event of a surprise late frost.

USDA Zone Info for Zone 3b

Here is the info for USDA Zone 3b.

Average Date of Last Frost (spring)	May 15
Average Date of First Frost (fall)	September 15
Lowest Expected Low	-35°F
Highest Expected Low	-30°F

This means that on a really cold year, the coldest it will get is -35°F. On most years you should be prepared to experience lows near -30°F.

Plants to Grow in Zone 3b

You may be interested in your other planting guides for Zone 3b.