Before planting it is a good idea to find your USDA Zone info to figure out your garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

A way of getting a good idea when to plant hemerocallis is to use the USDA zone info for Sparta.

Planting Calendar for Hemerocallis

Frost tolerance for hemerocallis:	Tolerant of some frost.
When to plant:	Up to 5 weeks before last frost.

Since hemerocallis are one of those plants that can tolerate a little bit of cold weather you can plant them just a bit earlier in the year than other frost tender plants.

The earliest that you can plant hemerocallis in Sparta 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 hemerocallis and expect a good harvest is probably August. Any later than that and your hemerocallis may not have a chance to really do well. If you are starting your hemerocallis indoors then you might be able to get away with starting them a few weeks earlier.

Last Frost Date

In Sparta the average date of last frost happens on May 15. In the coldest months of winter you should expect an average low temperature of -25°F.

Since the USDA zone info for Sparta is not always accurate the actual date of last frost is different every year. Since half of the time in Sparta it frosts late in the year after May 15 be ready to cover your hemerocallis if you have one of those late frosts.

USDA Zone Info for Sparta

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 Sparta

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