Hummelo Stachys thrives in well-drained soil with full sun exposure, though it can tolerate partial shade. Regular watering is essential during dry spells, but ensure the soil does not remain waterlogged. Deadheading spent flowers encourages prolonged blooming and maintains a tidy appearance. In late fall, cut back the foliage to the ground to promote healthy growth in the spring. Fertilize sparingly, as excessive nutrients can lead to leggy growth.