Dayliles are somewhat drought tolerant but they flower better with good watering.
Most likely it is because your daylilies have too little or too much water. If you are concerned by the soil, have it tested and ask the expert what amendments you need for your daylilies. Most daylilies are very hardy.
Yes. They will eat the flowers, but not the leaves.
Rabbits and deer eat daylilies. Even cats will chew on daylilies.
Deadheading daylilies is not necessary for optimal growth and blooming, but it can help promote more blooms and a tidier appearance.
There are daylilies in most temperate locations.
Yes. Daylilies can be grown in pots.
Daylilies are very hardy. The pests that bother daylilies are rust, thrips, spider mites, snails, and crown rot.
Iris is toxic to cattle but daylilies are not toxic.
Yes, daylilies typically close at night and reopen in the morning.
After daylilies bloom, you should deadhead the spent flowers by cutting them off to encourage more blooms. Remove any yellow or withered leaves and water the plants regularly, making sure the soil is well-drained. Fertilize the daylilies in the spring and divide them every few years to prevent overcrowding.
Daylilies are not poisonous. In fact, all parts of the daylily are edible. The Chinese use the buds in stirfry. And you may have to spray the daylilies with repellant to keep deer and rabbits from chewing on them.
Most daylilies are shipped bare root. Generally they are wrapped in damp newspaper to keep them moist from shipping. Because they are so hardy, just put the roots or tubers in water for a day before planting them in your yard.