A clumping grass-like perennial with broad shiny green foliage and masses of scented yellow flowers in spring. Great as a background plant or for mass planting in the garden and larger landscaping. Grows well in both sun and shade, tolerant of humidity and damper soils. Will handle periods of dryness, but watering will produce a happier plant. Suits most soil types, great for erosion control, for rain gardens and the thick growth will suppress weeds. Fertilise in spring.