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.

By reviewing the USDA zone info for Casper it's a good idea to estimate when to plant pansies.

Planting Calendar for Pansies

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

You can plant pansies earlier in the year because they are very cold tolerant.

The earliest that you can plant pansies 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 pansies and expect a good harvest is probably September. Any later than that and your pansies may not have a chance to fully mature. Starting your pansies indoors is a great way to get them started a little bit earlier.

Last Frost Date

The average date of last frost is April 15 in Casper. In the coldest months of winter you can expect an average low temperature of -20°F.

Remember that USDA zone info for Casper is an average and the actual date of last frost will vary from year to year. Half of the time in Casper you get a frost after April 15 so always be ready to cover your pansies in the event of one of those late frosts.

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.