Common Pests & Diseases
Diseases
May be susceptible to a leaf spot, powdery mildews, grey moulds (Botrytis) and honey fungus (rarely)
Pests
May be susceptible to aphids, scale insects, vine weevils and capsid bug
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hydrangea 'Tivoli' · Hydrangea macrophylla 'Tivoli'
Best grown in moist but well-drained soil in part shade although tolerant of sun if soil remains moist; requires acid soil to produce the blue-purple colouring, in alkaline soils the flowers will become pink. See shrubby hydrangea cultivation for more detailed advice
May be susceptible to a leaf spot, powdery mildews, grey moulds (Botrytis) and honey fungus (rarely)
May be susceptible to aphids, scale insects, vine weevils and capsid bug
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