Remember that calla lilies can quickly grow back from even a thumb-sized rhizome! Lilies also wilt when they need to rest; wilting may mean they require a period of dormancy. Sometimes leaves will droop after the indoor/outdoor transition. Join me in my little garden, and letâs grow together. Thatâs how I decided to build this website â to share gardening knowledge and tips that Iâve researched or learned through experience. Hopefully, your callas are drooping due to the above reasons. Examples of these fungal invaders are gray mold, powdery mildew, and blight. Texas A&M University AgriLife Extension: Easter Lily, Clemson University Cooperative Extension: Growing Perennials, Royal Horticultural Society: Lily Diseases. Discard the infected calla and its soil. If aphids are the problem, they can be eliminated with a blast from the garden hose or sink sprayer. Hello. When daylilies weaken and die over the course of a season, it may be due to lack of water, sunlight or friable soil. So, itâs often alarming when these attractive plants start wilting or drooping, especially when it's their tall and bright blooms. There are several reasons why your calla lilies may be drooping, and, thankfully, the three most common reasons are easy to address. How quickly your plant recovers will depend on how promptly you react to the problem and if you are willing to put in a little bit of effort to assist in the recovery process. Some lily plant problems â oriental lily problems occur during itsâ life span. These plants will let you know by their drooping leaves that you waited too long to water. Generally the lily will perk up after a few days. All this time, the plant weakens more causing wilting and drooping of the calla lily. calla lily is a bulb. Answered by Heather on June 4, 2011 Certified Expert . Always water calla lilies deeply, as just a little spritz now and again wonât do. They canât take temps below 45°F. They have been nicely growing from a bulb/tuber thing which we found in a pot in the spring. Peace Lilies are hardy from 65-85°F, so they do just fine living indoors with us. Her work has been published in the "New York Times," "Christian Science Monitor," "Horticulture Magazine" and other national and regional publications. Thatâs how I decided to build this website â to share gardening knowledge and tips that Iâve researched or learned through experience.