potted_plant
Rose care requirements
water
Deeply 1–2 times per week at the base. Never overhead.
soil
Rich, fertile, well-draining soil. pH 6.0–6.5.
light
Full sun — 6+ hours.
symptoms
Symptoms to look for in Rose
Fuzzy grey-brown mould on flower buds and petals, often causing buds to turn brown and fail to open, especially in cool, damp weather.
help
Common causes in Rose
Roses in bloom are particularly vulnerable to Botrytis cinerea during humid or rainy periods, since the dense petals of many rose varieties trap moisture and provide ideal conditions for the fungus.
healing
How to treat botrytis blight in Rose
Remove and destroy affected flowers and buds immediately, improve airflow by pruning surrounding growth, and apply a fungicide labelled for Botrytis if it's spreading.
shield
Preventing botrytis blight in Rose
Deadhead spent and damaged blooms promptly, avoid overhead watering especially during flowering, and prune for good air circulation through the bush.