Daylilies can be deciduous or evergreen perennials that are adaptable to all zones and all but the most acidic soils. They are tough, persistent and virtually pest-free plants. They have many uses in the garden or landscape and can be planted just about anywhere. Daylilies need fertilizer applications of a complete fertilizer, such as compost in spring and midsummer, according to "Sunset Western Garden Book."
Although daylilies are able to adapt to most soils, they will grow stronger and healthier and produce more blooms when planted in nutrient-rich soil that has been amended with ample amounts of humus. Till at least 2 inches of compost into the areas where daylilies are to be planted.
Compost is a complete organic fertilizer that provides both nutrients and humus, or organic material in the soil, which encourages microbiotic activity--which in turn makes more nutrients available to plants. Apply topdressings of compost in spring and midsummer, to replenish nutrients that have been used up.
Liquid Fertilizer Applications
Regular applications of compost tea or fish emulsion give daylilies an extra boost during the growing season. These nutrient-rich, liquid fertilizers can be applied through watering, where they will be absorbed through the soil, for a longer lasting effect, or as a foliar spray, with a diluted solution being sprayed directly onto foliage, where it is directly absorbed by the plant and has a more immediate effect.
The Role of Moisture
Water carries nutrients from the soil to the plant. Keep soil evenly moist throughout the growing season, taking care to keep them especially moist during blooming.
Mass plantings of daylilies are great on banks; under high branching deciduous trees; along driveways and borders; or grouped among evergreen shrubs, near pools and along streams. Dwarf daylilies fit well in rock gardens, as edging or as low groundcover, suggests "Sunset Western Garden Book."