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

In Spearfish you can figure out when it's possible to plant pansies by referring to the USDA zone info.

Planting Calendar for Pansies

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

Pansies tend to make it in cold weather which means that you can plant them much earlier in the year than more sensitive plants.

The earliest that you can plant pansies in Spearfish 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. If you wait any later than that and your pansies may not have a chance to grow to maturity. Starting your pansies indoors is a great way to get them started a little bit earlier.

Last Frost Date

In Spearfish the average date of last frost happens on April 15. You should expect an average low temperature of -20°F in the coldest months of winter.

Keep in mind that USDA zone info for Spearfish may not be accurate from year to year and the actual date of last frost can change quite a bit from year to year. Half of the time in Spearfish you get surprised by a frost after April 15 so always be ready to cover your pansies if you have a surprise late frost.

USDA Zone Info for Spearfish

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 Spearfish

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