Tall cultivars should be spaced 24 to 30 inches apart with smaller types 18 to 24 inches apart. By using a mulch, weed competition can be reduced. Stray weeds should be pulled out. Keep the young divisions watered, especially during dry spells. The daylilies are one of the most adaptable and self-sufficient flowers ever planted in the garden.
Few perennials are less exacting in their demands or require less care.
They have practically no pest or disease problems. Daylilies thrive and bloom on a very meager diet. The plants require little cultivation since the plant foliage nearly completely shades the ground around it. The clumps will benefit from being lifted, divided and replanted every few years, but if that is not possible, the plants will continue to grow with a somewhat less abundant bloom. Even with all of their toughness, daylilies may benefit from occasional waterings during the growing season, especially during dry periods.