Iris sibirica 'Caesar's Brother'

Iris sibirica ‘Caesar’s Brother’ (Siberian Iris ‘Caesar’s Brother’) is a clump-forming perennial prized for its striking, deep violet-black flowers highlighted by a bright yellow signal. Blooming in late spring atop slender, sword-like foliage, it brings bold vertical accents to borders, cottage gardens, and rain gardens. Thriving in full sun to part shade in moist, well-drained soil, it’s deer-resistant and low-maintenance. Hardy in Canadian zones 3–8, it returns reliably each spring with dramatic color.

Key Features
• Botanical name: Iris sibirica ‘Caesar’s Brother’
• Common name: Siberian Iris ‘Caesar’s Brother’
• Hardiness zones: Canada Zone 3–8
• Exposure: Full sun to part shade
• Soil: Moist, well-drained; rich in organic matter
• Height: 70–90 cm (28–36 in)
• Width: 45–60 cm (18–24 in)
• Foliage: Upright, sword-shaped green leaves
• Flower colour: Deep violet-black petals with bright yellow signal
• Bloom time: Late spring to early summer (May–June)
• Maintenance: Moderate; divide every 3–4 years to maintain vigor
• Advantages: Dramatic spring blooms; excellent for moist borders and rain gardens; deer-resistant