Use Epimedium × 'Rubrum' to brighten dry shade with spring blooms and handsome foliage. In mid to late spring, wiry stems carry clusters of red sepals with creamy petals above heart-shaped leaves. New growth often shows red or burgundy tones, then matures to green and can color again in fall.
Plant it in light to full shade, including deep shade, where many perennials struggle. Give it well-drained soil enriched with organic matter; it handles average moisture but, once established, can tolerate periods of dryness. In hot climates, avoid intense afternoon sun and let the soil stay evenly moist during extended dry spells.
At maturity it forms a tidy mound about 10-12 inches tall and spreads gradually by rhizomes to fill 15-18 inches or more over time. It is well suited for edging, woodland paths, rock gardens, and planting beneath trees, where its fine texture contrasts nicely with larger-leaved shade plants.
For best spring display, cut back last season's foliage in late winter or very early spring before new growth begins (large plantings can be sheared). Divide clumps in early spring or late summer if you want to expand your planting. Deer and rabbits typically avoid it, making it a dependable choice for shade borders.