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Extension > Garden > Diagnose a problem > What's wrong with my plant? > Annuals and Perennials > Geranium > Discolored flowers

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Geranium > Flowers > Discolored flowers

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  • Gray mold flowers 1
  • Gray mold leaf 2
  • Gray mold leaf 3

Gray Mold
Botrytis cinerea

  • Brown spots on leaves with concentric brown rings like a bull’s eye
  • Leaf spots can expand to form large brown angular lesions and eventually blight the entire leaf
  • Brown blossoms or petals; flowers drop off prematurely
  • Gray fuzzy mold develops on rotted tissue under humid conditions
  • Disease develops during  cool, wet weather
  • More information on gray mold

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