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.

It's possible to estimate when it's possible to plant torch lilys by looking at the USDA zone info for Pierre.

Planting Calendar for Torch Lilys

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

Torch Lilys do well in cold which tells us that you can plant them a quite a bit earlier than more sensitive plants.

The earliest that you can plant torch lilys in Pierre is March. However, you really should wait until April if you don't want to take any chances.

The last month that you can plant torch lilys and expect a good harvest is probably August. Any later than that and your torch lilys may not have a chance to really do well. You can get started a few weeks earlier by starting your torch lilys indoors.

Last Frost Date

The average date of last frost is May 15 in Pierre. You should expect an average low temperature of -25°F in the coldest months of winter.

Since the USDA zone info for Pierre is not always accurate the actual date of last frost will vary from year to year. Half of the time in Pierre you get surprised by a frost after May 15 so always be ready to cover your torch lilys if you have one of those late frosts.

USDA Zone Info for Pierre

Here is the info for USDA Zone 4b.

Average Date of Last Frost (spring)	May 15
Average Date of First Frost (fall)	September 15
Lowest Expected Low	-25°F
Highest Expected Low	-20°F

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

Plants to Grow in Pierre

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