Iris sibirica 'Blue Bird' is a charming perennial known for its striking blue blooms and elegant, grass-like foliage. This iris has a clump-forming habit and thrives in USDA Hardiness Zones 3 to 9, making it suitable for a wide range of climates. It prefers full sun to partial shade and flourishes in well-drained soils. Ideal temperatures for optimal growth are between 60°F to 70°F. 'Blue Bird' is moderately deer-resistant, providing an added advantage for gardeners in deer-populated areas. The plant reaches a mature height of about 2 to 3 feet, creating vibrant vertical interest in any garden.