Iris sibirica 'Butter and Sugar' (Siberian Iris) is a top choice in terms of Siberian Irises with its white standards and unique, bright yellow falls, enlivening the landscape from late spring to early summer. Each flower stalk produces many dainty blossoms. After blooming, the grass-like foliage, consisting of sturdy clumps of upright green, narrow and fairly rigid, blade-shaped leaves, is also one of its most attractive garden features.

• Recipient of many prestigious awards, including the Morgan Award (1986), which is the highest award reserved exclusively for Siberian Irises within the American Iris Society.
• Grows up to 24-30 in. tall and wide (60-75 cm).
• Performs best in full sun or part shade, in moist, fertile, humusy, organically rich, neutral to slightly acidic, well-drained soils. Shade is tolerated, but the flowering performance may be altered. While this lovely iris enjoys a wide range of soils, slightly acidic soil is where this plant will thrive. Drought tolerant, even though this iris prefers adequate moisture.
• Among the most trouble-free and low-maintenance plants in the garden, Siberian Irises are deer resistant.
• A welcomed addition to beds and borders, city gardens, coastal gardens, cottage gardens, rain gardens, or near streams or ponds, where it provides excellent color contrast.
• The best time to plant Siberian Irises is spring or late summer.
• Propagate by division of rhizomes from midsummer to early fall
• All parts may cause discomfort if ingested. Wear gloves and other protective equipment when handling.
• Toxic to dogs, toxic to cats, toxic to horses.
• Iris sibirica is a rhizomatous herbaceous perennial, from Europe (including France, Italy, Switzerland, Austria, Czech Republic, Slovakia, Germany, Hungary, Poland, Romania, Bulgaria, Former Yugoslavia, Belarus, Estonia, Latvia, Lithuania, Moldova, Ukraine, and northern Turkey) and Central Asia (including Armenia, Azerbaijan, and Siberia).