The USDA Zone info is a great tool for gardeners to help us figure out your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

A way of figuring out when it's a good idea to plant snow peas is to check out the USDA zone info for Casper.

Planting Calendar for Snow peas

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

You can plant snow peas a lot earlier in the year because they are one of those plants that can tolerate quite a bit of cold weather.

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

Last Frost Date

On average all chance of frost has passed is on April 15 in Casper. You can expect an average low temperature of -20°F in the coldest months of winter.

Keep in mind that USDA zone info for Casper is an average and the actual date of last frost changes from year to year. Half of the time in Casper you get a frost after April 15 so make sure that you are prepared to protect your snow peas in the event of a late frost.

USDA Zone Info for Casper

Here is the info for USDA Zone 5a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-20°F
Highest Expected Low	-15°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 -15°F.

Plants to Grow in Casper

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