Cypripedium formosanum · Perennial
Root rot: Ensure excellent drainage with a gritty compost mix and avoid overwatering, especially in winter.
Slugs and snails: Use physical barriers like copper tape or apply iron phosphate-based pellets around the base.
Vine weevil: Apply nematodes to the soil in autumn or use systemic insecticides if infestation is severe.
Powdery mildew: Improve air circulation and spray with a suitable fungicide or bicarbonate solution if necessary.
Leaf spot: Remove affected foliage and avoid wetting the leaves when watering to reduce fungal spread.