WATCH FOR root rot from over watering and poor drainage, which can kill the plant. Let daphne dry out slightly between waterings or, if drainage is poor, plant in a raised bed. Yellow leaves can be a sign of magnesium deficiency. Correct by spraying the plant with 20g of Epsom salts mixed with one litre of water.Click to see full answer. Accordingly, why is my Daphne leaves turning yellow?Nutrient imbalances caused by high pH and/or poor drainage result in yellow leaves. If your soil is well-drained soil but yellow leaves persist, try a dose of iron chelates to correct a possible iron deficiency. Part shade is best for most daphne varieties. All day direct sun can turn leaves yellow. how do you revive a daphne plant? How to Revive a Daphne Carol Mackie Check the surrounding area. Pull up any weeds that are growing around the base of the shrub. Dig down about 6 inches into the soil near the shrub to check the soil moisture. Prune out any diseased or dead branches. Spread a 2-inch layer of compost over the root zone in the spring. Check the leaves for signs of pests. Regarding this, what is the best fertilizer for Daphne? Fertilize the daphne lightly with a balanced 10-10-10 or similar fertilizer in late winter or early spring just after blooming has finished. This fertilizing may coincide with a slight annual pruning.Why is my Daphne losing leaves?If your daphne begins to lose leaves at the wrong time of year, or in the winter if they are evergreen, a number of causes could be at the root of the problem. They are susceptible to botrytis, leaf spots, canker, twig blight, crown rot, root rot and virus as well as several types of insect.