potted_plant
Radicchio care requirements
water
Keep soil consistently moist but not waterlogged. Water 2–3 times weekly; reduce frequency as heads mature.
soil
Well-draining, fertile loam with pH 6.0–7.5. Add compost before planting for best head development.
light
Full sun (6–8 hours daily) for head formation and color development; some shade in intense heat.
symptoms
Symptoms to look for in Radicchio
- fiber_manual_recordFuzzy grey-brown mould on flowers, leaves, or stems
- fiber_manual_recordWater-soaked spots that turn brown and mushy
- fiber_manual_recordBlighted flower buds that fail to open
help
Common causes in Radicchio
Caused by the fungus Botrytis cinerea (grey mould), which thrives in cool, humid conditions with poor air circulation, often spreading rapidly on damaged or ageing plant tissue.
healing
How to treat botrytis blight in Radicchio
Remove and destroy all affected plant material immediately, improve airflow around the plant, and apply a fungicide labelled for Botrytis if the infection is spreading.
shield
Preventing botrytis blight in Radicchio
Avoid overhead watering and overcrowding, water at soil level, deadhead spent flowers promptly, and ensure good ventilation, especially in humid weather.