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What Daylilies Need

By Daniel Smith ; Updated September 21, 2017

Some edible varieties of Daylilies are popular in Asian cuisine. Add color and uniqueness to a fresh salad with this easy-to-grow plant or decorate a festive, special occasion cake. Each stalk of the Hemerocallis plant blooms one flower approximately 24 hours apart. One plant holds several clusters of stalks, making it popular because the blooming process can last up to several weeks, depending on the plant size.

Light Requirements

Daylilies thrive in full-sun areas, with partial shade during the hotter months. They can be placed in a sunny window or flowerbed as a focal point for landscaping. Approximately six hours of daily sunlight will yield the highest bloom production.


Daylilies do well in virtually any climate conditions, according to the University of Minnesota Extension Services. The plants survive cold temperatures extremely well. There are evergreen, semi-evergreen and dormant varieties of daylilies available. For example, there are varieties with different shaped flowers such as circular, triangular and stars. It is advised to research which variety does best in your geographical region.

Soil Requirements

Daylilies thrive in rich organic soil that is slightly acidic. Gardening compost and a mild fertilizer are ideal for these plants. Gardeners enjoy the ease of daylilies growing well in virtually any type of soil. The University of Minnesota Extension Services recommends not planting daylilies under trees due to competition for soil nutrients, sun exposure and moisture.


Daylilies have long, thin roots. Plant them 6 to 8 inches deep. Prepare the planting area with 1 to 2 inches of additional root space beneath the roots with loose, organically-rich soil. Avoid covering the crown of daylilies to ensure maximum blooming production and adequate nourishment.


Daylilies thrive on lots of water. You can create a small hole near a flower bed or each individual flower to hold additional water. However, avoid leaving the plants in standing water to prevent root rot. If your daylilies aren’t blooming daily, they might be low on water. A good soaking should boost and encourage more bloom production.


Indoor and outdoor daylilies enjoy organic coarse mulch. The mulch holds in the soil moisture while providing additional acidity. Apply a layer of mulch 1 to 2 inches around the base of daylilies in the yard and in containers.


About the Author


Daniel Smith graduated from technical school in 1993 and has been writing since 2005. His has written numerous articles for the instructional website called eHow in areas including gardening, home improvement, celebrating special events and health-related topics.