Oxalis acetosella · Perennial
Vine weevil: Check pots for grubs before planting and use nematodes or chemical controls.
Slugs and snails: Use physical barriers, iron phosphate pellets, or hand-pick at night.
Powdery mildew: Improve air circulation and apply a suitable fungicide if severe.
Root rot: Ensure well-draining soil and avoid overwatering to prevent waterlogging.