The USDA Zone info is a great tool for gardeners to help us estimate your gardening 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 Wasco should be looked at 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.

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

The earliest that you can plant snow peas in Wasco is January. However, you really should wait until February 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 October. If you wait any later than that and your snow peas may not have a chance to fully mature. If you are starting your snow peas indoors then you might be able to get away with starting them a couple of weeks earlier.

Last Frost Date

The average date of last frost is February 15 in Wasco. You can expect an average low temperature of 20°F in the coldest months of winter.

Since the USDA zone info for Wasco may not be accurate from year to year the actual date of last frost is different every year. Since half of the time in Wasco there is a last frost after February 15 be ready to protect your snow peas if you have a late frost.

USDA Zone Info for Wasco

Here is the info for USDA Zone 9a.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	20°F
Highest Expected Low	25°F

This means that on a really cold year, the coldest it will get is 20°F. On most years you should be prepared to experience lows near 25°F.

Plants to Grow in Wasco

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