One of the best tools that you have as gardeners to help us determine your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

It's a good idea to estimate when it's the best time to plant hemerocallis by using the USDA zone info for Moorhead.

Planting Calendar for Hemerocallis

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

You can plant hemerocallis a little earlier in the year because they are one of those plants that can tolerate a little bit of cold weather.

The earliest that you can plant hemerocallis in Moorhead 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 fully mature. Starting your hemerocallis indoors is a great way to get them started a few weeks earlier.

Last Frost Date

In Moorhead the average date of last frost happens on May 15. In the coldest months of winter you should expect an average low temperature of -30°F.

Since the USDA zone info for Moorhead may not be accurate from year to year the actual date of last frost is different every year. Half of the time in Moorhead you get a frost after May 15 so always be ready to protect your hemerocallis in the event of a surprise late frost.

USDA Zone Info for Moorhead

Here is the info for USDA Zone 4a.

Average Date of Last Frost (spring)	May 15
Average Date of First Frost (fall)	September 15
Lowest Expected Low	-30°F
Highest Expected Low	-25°F

This means that on a really cold year, the coldest it will get is -30°F. On most years you should be prepared to experience lows near -25°F.

Plants to Grow in Moorhead

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