Before planting it is a good idea to find your USDA Zone info to figure out your garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

The USDA zone info for Oswego can be reviewed to estimate when it's a good idea to plant snow peas.

Planting Calendar for Snow peas

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

Snow peas tend to make it in pretty solid cold which tells us that 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 Oswego is February. However, you really should wait until March 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 September. If you wait any later than that and your snow peas may not have a chance to fully mature. You can get started a little bit earlier by starting your snow peas indoors.

Last Frost Date

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

Since the USDA zone info for Oswego is an average the actual date of last frost is different every year. Since half of the time in Oswego it frosts late in the year after April 15 be ready to cover your snow peas if you have a late frost.

USDA Zone Info for Oswego

Here is the info for USDA Zone 5b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-15°F
Highest Expected Low	-10°F

This means that on a really cold year, the coldest it will get is -15°F. On most years you should be prepared to experience lows near -10°F.

Plants to Grow in Oswego

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