Campanula betulifolia · Perennial
Slugs and snails: Use physical barriers like copper tape or apply iron phosphate pellets around the base.
Powdery mildew: Ensure good air circulation and spray with a fungicide if infection is severe.
Root rot: Plant in gritty, well-drained compost and avoid overwatering during the dormant season.
Leaf spot: Remove affected leaves and avoid wetting foliage when watering to reduce humidity.