Easily grown in average, acidic, dry to medium moisture, well-drained soils in part shade to full shade. Prefers loose, organically rich loams with consistent moisture in part shade (sun-dappled or morning sun). Foliage will usually burn in full afternoon sun. Tolerates full shade. Also tolerates drought and dry shade (rhizomes hold moisture) once established. Intolerant of alkaline soils. Clumps spread somewhat slowly but will form attractive colonies over time. Epimedium grandiflorum is a dense, rhizomatous, clump-forming, usually deciduous perennial that typically grows 10-15” tall with a spread to 18-20″. It is native to deciduous woodland areas of Japan, Korea and Manchuria. Spidery flowers (1-2″ across) with pale rose to violet inner sepals and white petals with long reflexed spurs (each to 1″) bloom in tight racemes (to 4-16 flowers per raceme) above the foliage in spring (April-May) atop flowering stems bearing one biternate or triternate leaf. Each flower has eight petal-like sepals and four petals (to 3/4″ long) with long spurs (suggestive of columbine) which usually exceed the length of the inner sepals. Variants and cultivars come in a wide variety of different flower colors. Compound, medium green leaves form attractive foliage mounds. Hardy to USDA Zones 5-8.