Rainbow Rhythm® 'Persian Ruby' Daylily

Rainbow Rhythm® ‘Persian Ruby’ is an upright daylily with deep purplish-red flowers, spoon-shaped petals, and a contrasting green throat. The large blooms bring a dramatic color accent to summer borders and mixed perennial plantings. ## Placement and size The plant grows about 30 inches tall and spreads 18 to 24 inches. Give it full sun to part sun and room for its foliage clump to mature. Proven Winners lists this selection for borders, mass planting, and specimen use; the upright habit also makes it a strong focal point among shorter perennials. ## Flowers and growing conditions The flowers approach 8 inches across, and the breeder lists summer bloom, average water needs, and USDA hardiness zones 3–9. Daylilies adapt to many soils, while moist, well-drained soil supports steady growth. Keep the clump away from nearby trees and shrubs that compete for water and nutrients, following the [University of Minnesota Extension daylily guide](https://extension.umn.edu/garden-and-home/yard-and-garden/gardening-in-minnesota/daylilies). ## Maintenance Remove faded flowers during bloom and cut spent stalks back after flowering. Divide crowded plants in early spring or just after bloom, keeping roots attached to each division and watering well after replanting. See [Proven Winners’ ‘Persian Ruby’ profile](https://www.provenwinners.com/plants/hemerocallis/rainbow-rhythm-persian-ruby-daylily-hemerocallis-hybrid) for cultivar-specific flower, size, and exposure information.