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 first opportunity to plant torch lilys in Elk River can be determined by referring to the USDA zone info.

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 weather which means that you can plant them a lot earlier in the year than other frost tender plants.

The earliest that you can plant torch lilys in Elk River 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. You probably don't want to wait any later than that or else your torch lilys may not have a chance to fully mature. You can get started a little bit earlier by starting your torch lilys indoors.

Last Frost Date

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

Since the USDA zone info for Elk River is not always accurate the actual date of last frost can change quite a bit from year to year. Half of the time in Elk River you get a frost after May 15 so always be ready to cover your torch lilys in the event of one of those late frosts.

USDA Zone Info for Elk River

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 Elk River

You may be interested in your other planting guides for Elk River.