Iris tenax (Toughleaf Iris)

Floriferous and resilient, Iris tenax (Toughleaf Iris) is a slowly spreading rhizomatous evergreen perennial forming large, attractive clumps of tough, grass-like, light green leaves. In mid-spring to early summer, a profusion of purple to lavender-blue flowers, 3-5 in. wide (7-12 cm), often with yellow and white marking on the falls, appear just above the foliage. The flowers of this species show considerable variation in color as white, cream, and yellow variants also occur. They usually occur singly but sometimes in pairs. Very handsome and undemanding, Toughleaf Iris is great for rockeries, along the edge of gravel paths, or the front of the perennial border. It also enjoys meadow settings and can be used to edge woodland borders. Once established it will tolerate drought and gently reseed.

• Grows up to 6-12 in. tall (25-30 cm) and 24 in wide (60 cm). Does not spread quickly, but will form large clumps.
• Performs best in full sun to light shade in moist to dry, well-drained soils. This iris is not fussy about soil types, as long as they are well-drained. Wet feet will kill this plant. Drought tolerant once established.
• No serious pest or disease issues. Deer and rabbit resistant.
• Propagate by seed. This iris resents root disturbance during its dormant season in summer.
• All parts may cause discomfort if ingested. Wear gloves and other protective equipment when handling.
• Toxic to dogs, toxic to cats, toxic to horses.
• Native to southwestern Washington, western Oregon, and northwestern California.