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Iris x robusta ‘Gerald Darby’

Iris laevigata 'Gerald Darby', Iris versicolor 'Gerald Darby', Iris 'Gerald Darby'

Iris x robusta 'Gerald Darby', Iris laevigata 'Gerald Darby', Iris versicolor 'Gerald Darby', Iris 'Gerald Darby', Iris for Ponds, Perennial for wet soil, Perennial for poorly drained soils, Blue Flowers
Iris x robusta 'Gerald Darby', Iris laevigata 'Gerald Darby', Iris versicolor 'Gerald Darby', Iris 'Gerald Darby', Iris for Ponds, Perennial for wet soil, Perennial for poorly drained soils, Blue Flowers

Iris x robusta ‘Gerald Darby’ is a rhizomatous perennial forming a clump of narrow, arching, sword-shaped leaves stained purple at their base. In late spring to early summer, unbranched purplish stems boasting 3-4 violet-blue flowers adorned with deep yellow signals on mostly white falls. Very handsome in and out of bloom, Gerald Darby is a central landscape plant for the water garden, near ponds and streams. This marginal aquatic plant is also a lovely addition to moist borders.

  • Grows up to 24-36 in. tall (60-90 cm) and 18-30 in. wide (45-75 cm). Clumps will spread steadily over time.
  • Performs best in full sun or part shade, in acidic, moist to wet, humus-rich soils. This iris may be grown in up to 2-4 in. (5-10 cm) of shallow standing water.
  • A welcomed addition to beds and borders, cottage gardens, bog gardens, water gardens, and near streams or ponds, where it will provide excellent color contrast.
  • No serious pest or disease issues. Keep an eye out for aphids, slugs and snails, iris borer and iris thrips, gray mold, rots, and viruses. Deer resistant.
  • Remove any dying foliage, old flower stems can be cut down after flowering
  • 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.

Irises: How to Grow and Care with Success


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Requirements

Hardiness 4 - 9
Heat Zones 3 - 9
Climate Zones 1, 1A, 1B, 2, 2A, 2B, 3, 3A, 3B, 4, 5, 6, 7, 8, 9, 14, 15, 16, 17
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 2' - 3'
(60cm - 90cm)
Spread 1' - 3'
(30cm - 90cm)
Spacing 18" - 30"
(50cm - 80cm)
Maintenance Low
Water Needs High
Soil Type Clay, Loam, Sand
Soil pH Acid, Neutral
Soil Drainage Moisture Retentive, Poorly Drained
Characteristics Showy
Tolerance Deer, Wet Soil
Garden Uses Beds And Borders, Bog Gardens, Ponds And Streams, Rain Gardens, Water Gardens
Garden Styles Informal and Cottage
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Alternative Plants to Consider

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

Recommended Companion Plants

Primula pulverulenta (Candelabra Primrose)
Carex elata ‘Aurea’ (Bowles’ Golden Sedge)

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 4 - 9
Heat Zones 3 - 9
Climate Zones 1, 1A, 1B, 2, 2A, 2B, 3, 3A, 3B, 4, 5, 6, 7, 8, 9, 14, 15, 16, 17
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 2' - 3'
(60cm - 90cm)
Spread 1' - 3'
(30cm - 90cm)
Spacing 18" - 30"
(50cm - 80cm)
Maintenance Low
Water Needs High
Soil Type Clay, Loam, Sand
Soil pH Acid, Neutral
Soil Drainage Moisture Retentive, Poorly Drained
Characteristics Showy
Tolerance Deer, Wet Soil
Garden Uses Beds And Borders, Bog Gardens, Ponds And Streams, Rain Gardens, Water Gardens
Garden Styles Informal and Cottage
How Many Plants
Do I Need?
Guides with
Iris Species
Not sure which Iris Species to pick?
Compare Now

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