Siberian Iris Shirley Pope Iris sibirica Shirley Pope is a refined and richly coloured Siberian iris, admired for its deep, velvety blooms. The flowers are a striking dark violet-blue, almost purple, with a white blotch on the base of the falls, creating an elegant display in late spring to early summer. Slender, upright stems carry the blooms above a tidy clump of fine, sword-like green foliage that adds texture and structure to the garden. This low-maintenance, clump-forming perennial thrives in moist, well-drained soils and is ideal for borders, waterside planting, or naturalistic garden designs. ‘Shirley Pope’ is also attractive to pollinators and remains visually appealing even when not in flower. Site: Borders, cottage gardens, waterside planting Soil: Moist, well-drained, moderately fertile Position: Full sun to partial shade Season of interest: Late spring to early summer (flowering) Hardiness: Fully hardy Height: 70–90 cm (28–36 in) Spread: 45–60 cm (18–24 in)