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Iris lactea (Milky Iris)

White-flowered iris, Milky Iris, White-flowered Chinese Iris, Iris biglumis, Iris ensata var. chinensis, Iris fragrans, Iris haematophylla, Iris iliensis, Iris lactea subsp. chinensis, Iris longispatha, Iris moorcroftiana, Iris oxypetala, Iris triflora

Iris lactea, White-flowered iris, Milky Iris, White-flowered Chinese Iris, Blue Flowers, Blue Iris, White Iris
Iris lactea, White-flowered iris, Milky Iris, White-flowered Chinese Iris, Blue Flowers, Blue Iris, White Iris

Iris lactea (Milky Iris) is a clump-forming, rhizomatous, herbaceous perennial boasting fragrant, white, lavender, or blue flowers, 2-3 in. long (5-7 cm), with beautifully veined falls. Blooming in late spring to early summer, 2–4 blossoms per stem, are borne atop stalks that arise from clumps of erect, linear, gray-green leaves. Native to Central Asia, the Himalayas, Mongolia, and Korea, this small rhizomatous perennial prefers a sunny situation on dry to moderately moist soil.

  • Grows up to 6-16 in. tall and wide (16-40 cm).
  • Performs best in full sun in fertile, slightly acidic, well-drained soils. Some afternoon shade is welcomed in hot summer areas.
  • A welcomed addition to beds and borders, wall-side borders, city gardens, cottage gardens, and coastal gardens.
  • Remove any dying foliage in fall, old flower stems can be cut down after flowering.
  • No serious pest or disease issues. Keep an eye out for slugs, snails, and gray mold.
  • All parts may cause discomfort if ingested. Wear gloves and other protective equipment when handling.
  • Toxic to dogs, toxic to cats, toxic to horses.
  • Plant in late summer or early autumn.
  • Propagate by division of rhizomes from midsummer to early fall.
  • Native to Central Asia, the Himalayas, Mongolia, and Korea.

Irises: How to Grow and Care with Success


Want to learn how to grow and care for irises like a pro? Follow these simple steps and enjoy the beauty of these striking plants

Requirements

Hardiness 3 - 9
Plant Type Perennials
Plant Family Iridaceae
Genus Iris other species
Common names Iris
Exposure Full Sun, Partial Sun
Season of Interest Spring (Late)
Summer (Early)
Height 6" - 2'
(15cm - 60cm)
Spread 6" - 2'
(15cm - 60cm)
Spacing 6" - 16"
(15cm - 40cm)
Maintenance Low
Water Needs Low, Average
Soil Type Loam, Sand
Soil pH Acid, Neutral
Soil Drainage Moist but Well-Drained, Well-Drained
Characteristics Fragrant, Showy
Tolerance Salt
Garden Uses Beds And Borders, Wall-Side Borders
Garden Styles Informal and Cottage, City and Courtyard, Coastal Garden
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Alternative Plants to Consider

Iris virginica var. shrevei (Southern Blue Flag)
Iris latifolia (English Iris)
Iris chrysographes (Gold-Marked Iris)
Iris macrosiphon (Long Tubed Iris)
Iris setosa (Bristle-Pointed Iris)
Iris hexagona (Dixie Iris)

Find In One of Our Guides or Gardens

Native Plant Alternatives to Iris pseudacorus (Yellow Iris)
Irises: How to Grow and Care with Success
While every effort has been made to describe these plants accurately, please keep in mind that height, bloom time, and color may differ in various climates. The description of these plants has been written based on numerous outside resources.
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Requirements

Hardiness 3 - 9
Plant Type Perennials
Plant Family Iridaceae
Genus Iris other species
Common names Iris
Exposure Full Sun, Partial Sun
Season of Interest Spring (Late)
Summer (Early)
Height 6" - 2'
(15cm - 60cm)
Spread 6" - 2'
(15cm - 60cm)
Spacing 6" - 16"
(15cm - 40cm)
Maintenance Low
Water Needs Low, Average
Soil Type Loam, Sand
Soil pH Acid, Neutral
Soil Drainage Moist but Well-Drained, Well-Drained
Characteristics Fragrant, Showy
Tolerance Salt
Garden Uses Beds And Borders, Wall-Side Borders
Garden Styles Informal and Cottage, City and Courtyard, Coastal Garden
How Many Plants
Do I Need?
Guides with
Iris Species
Not sure which Iris Species to pick?
Compare Now

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