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How can I stop my clematis getting powdery mildew?
Spray affected growth with Systhane Fungus Fighter from Bayer or Fungus Clear Ultra from Scott's, but mildew indicates the plant is too dry, so keep it well watered and mulch to keep the roots cool.
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Difficulty: 3 / 5
Difficulty: 2 / 5
Difficulty: 2 / 5
Difficulty: 2 / 5