Daylily fans can be planted in spring, summer or fall. Space them about 1½ to 2 feet apart.
Dig the hole a few inches deeper that the depth of the fan clump itself. If any green foliage is still on the plant, keep it above ground. Inside the hole, mound a couple of handfuls of soil on the bottom so the fan clump sits on it with the root tubers fall around it.
Press the soil firmly when covering and water to eliminate air pockets in the hole. Deep soak the planted area with water every 3 to 5 days (depending on local weather) for the first 4 weeks.
A good layer of mulch will help to keep the roots cool and moist during the growing season. Use a low nitrogen timed release fertilizes.
Pinch off spent blooms to keep the plant from going to seed. Remove any dead stalks or leaves. At the end of their blooming cycle and as the leaves begin to wither; they can be cut back to the ground. Every 4 to 6 years, daylilies should be lifted out of the ground and the clumps divided and replanted.