Troubleshooting
Adolphe Audusson Camellia problems — and how to fix them
Adolphe Audusson Camellia (Camellia japonica 'Adolphe Audusson') is generally forgiving once you match its basics, but a few issues come up again and again. Here is what each one looks like, why it happens, and the fix.
Bud drop
Sudden bud loss is usually caused by drought during bud set (summer-autumn), over-watering, or rapid temperature fluctuations. Keep soil consistently moist through late summer and shelter from cold winds.
Petal blight (Ciborinia camelliae)
Brown, water-soaked patches on flowers that spread rapidly. Remove affected blooms promptly and clear fallen petals; the fungal spores overwinter in soil.
Chlorosis
Yellow leaves with green veins signal iron deficiency from alkaline soil or hard water. Apply chelated iron feed and switch to rainwater for irrigation.
Scale insects
Brown lumps on stems causing sticky honeydew and sooty mould. Treat with horticultural oil in spring when scales are in the crawler stage.
Frost damage to buds
Frosted buds turn brown and fail to open. Protect with horticultural fleece during sharp frosts, and avoid east-facing positions where rapid thawing damages buds.
Prevent adolphe audusson camellia problems before they start
Most adolphe audusson camellia issues are care-mismatch, not bad luck. Dial in the basics:
Adolphe Audusson Camellia problems — FAQ
Why is my adolphe audusson camellia bud drop?
Sudden bud loss is usually caused by drought during bud set (summer-autumn), over-watering, or rapid temperature fluctuations. Keep soil consistently moist through late summer and shelter from cold winds.
Why is my adolphe audusson camellia petal blight (ciborinia camelliae)?
Brown, water-soaked patches on flowers that spread rapidly. Remove affected blooms promptly and clear fallen petals; the fungal spores overwinter in soil.
Why is my adolphe audusson camellia chlorosis?
Yellow leaves with green veins signal iron deficiency from alkaline soil or hard water. Apply chelated iron feed and switch to rainwater for irrigation.
Why is my adolphe audusson camellia scale insects?
Brown lumps on stems causing sticky honeydew and sooty mould. Treat with horticultural oil in spring when scales are in the crawler stage.
Why is my adolphe audusson camellia frost damage to buds?
Frosted buds turn brown and fail to open. Protect with horticultural fleece during sharp frosts, and avoid east-facing positions where rapid thawing damages buds.