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Dark-coloured spots, varying in colour from black and brown through to purple on the upper surface of the leaf. Markings may expand and join as the disease progresses.
Markings on the upper surface of the leaf, but clustres of spore capsules may be seen on the underside of the leaf in many cases. Often the fungal activity is either inside the leaf or on the underside. These diseases Fungal leaf spots can affect many plants including; Camellia, cordyline, dogwood, escallonia, garrya, hebe, hellebores, horse chestnut, iris, ivy, junipers, periwinkle, phormium, rhododendron, thuja, viburnum and yucca.
Now you know what the problem is, and the damage it is doing, don't let your plant suffer.
For specific problems try one of our specialists...
RHS Garden, Wisley
Woking, United Kingdom
Shinjuku Gyoen National Garden
Tokyo, Japan
Kenrokuen Garden
Kanazawa, Ishikawa, Japan
The New York Botanical Garden
New York, United States
Butchart Gardens
British Columbia, Canada
Vallarta Botanical Garden
Vallarta, Mexico