Iris foetidissima (Stinking Iris)

Noted for its terrific foliage and showy fruit, Iris foetidissima (Stinking Iris) is an evergreen perennial with small, pale lavender, yellow-tinged, beardless flowers in late spring. Rising atop upright stems, they are followed by attractive, disproportionately large seed pods which mature over the summer and burst open in early fall to reveal showy, brilliant orange-red seeds.

Noted for its terrific foliage and showy fruit, Iris foetidissima (Stinking Iris) is an evergreen perennial with small, pale lavender, yellow-tinged, beardless flowers in late spring. Rising atop upright stems, they are followed by attractive, disproportionately large seed pods which mature over the summer and burst open in early fall to reveal showy, brilliant orange-red seeds. Ignored by birds, they persist throughout the winter until the spring and put on a spectacular display. This rhizomatous perennial forms attractive clumps of glossy, rich green, sword-shaped, evergreen leaves, which are unpleasantly aromatic when cut or bruised, hence the common name of Stinking Iris. Robust and easy to grow, this remarkable iris does well in almost any situation. It will survive wet dry conditions and open or shaded sites.

  • Recipient of the prestigious Award of Garden Merit of the Royal Horticultural Society.
  • Grows up to 1-2 ft. tall (30-60 cm) and 12-18 in. wide (30-45 cm).
  • Performs best in full sun or part shade, in moist, humus-rich, well-drained soils. Some tolerance to full shade. Established plants tolerate some dry conditions.
  • A welcomed addition to beds and borders, underplanting shrubs and roses, and cottage gardens.
  • Deer resistant.
  • No serious insect or disease issues but watch for slugs, snails, thrips, and gray molds.
  • Remove any dying foliage in autumn. Divide in spring or fall as needed.
  • Propagate by seed sown in pots in a cold frame in autumn or spring. Propagate by division of rhizomes from midsummer to early autumn
  • 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 Europe, North Africa

Requirements

Hardiness 4
– 9

Heat Zones 2
– 9

Climate Zones 3, 3A, 3B, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
Plant Type Perennials
Plant Family Iris – Other
Exposure Full Sun, Partial Sun, Shade
Season of Interest Spring (Early,Late)FallWinter
Height 1'
– 2'
(30cm
– 60cm)
Spread 1'
– 2'
(30cm
– 60cm)
Spacing 18″
– 24″
(45cm
– 60cm)
Water Needs Average
Maintenance Average
Soil Type Chalk, Clay, Loam, Sand
Soil pH Acid, Alkaline, Neutral
Soil Drainage Moist but Well-Drained, Well-Drained
Characteristics Cut Flowers, Plant of Merit, Showy, Evergreen, Fruit & Berries
Tolerance Deer
Garden Uses Beds and Borders, Underplanting Roses and Shrubs
Garden Styles Informal and Cottage