Picture of the Week

February 7, 2022

Rhododendron Desiccation

Rosie Lerner-retired, Extension Consumer Horticulture Specialist,Purdue University

Extreme cold and high winds are especially tough on broadleaved evergreens such as rhododendron because they have a greater surface area through which to lose water compared to deciduous plants and needled evergreens. Symptoms can include yellow, beige, brown or purplish foliage and leaf margins that are curled or rolled.    

Severe or prolonged desiccation will result in dead twigs and buds. We have much more weather to get through this winter before we know the extent of injury. 


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rhododendron Figure 1
rhododendron Figure 2
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