Geum · Perennial
Geum sawfly: Monitor from spring onwards and remove any larvae by hand, then destroy them.
Slugs and snails: Use physical barriers like copper tape or organic slug pellets to protect young growth.
Powdery mildew: Improve air circulation by thinning crowded plants and water at the base to keep foliage dry.
Root rot: Ensure soil is well-drained and avoid overwatering, especially for alpine species like G. montanum.
Leaf scorch: Plant in partial shade or position behind other low-growing plants to soften summer sun.