Alphabetical Plant Listing

Iris chrysographes (Gold-Marked Iris)

Gold-Marked Iris, Black Iris


Slightly fragrant, Iris chrysographes (Gold-Marked Iris) is a striking herbaceous perennial forming a clump of narrow, gray-green leaves. In late spring to early summer, stunning, velvety, deep red-purple or purple-black flowers, 2-4 in. wide (5-10 cm), with gold etching on the falls, are borne on branched stems above the foliage. Native to Southern China and Myanmar, this beardless rhizomatous iris enjoys abundant moisture and is well-suited to bog gardens, or beside the water.

  • Recipient of the prestigious Award of Garden Merit of the Royal Horticultural Society.
  • Grows up to 18-20 in. tall and wide (45-60 cm).
  • Performs best in full sun or part shade, in medium to wet, neutral to slightly acid loam.
  • A welcomed addition to beds and borders, cottage gardens, bog gardens, rain gardens, and near streams or ponds, where it will provide excellent color contrast.
  • Keep an eye out for slugs, snails, thrips, and gray mold. Deer resistant.
  • Remove any dying foliage in autumn, old flower stems can be cut down after flowering.
  • Propagate by division from midsummer to early autumn, and plant immediately in flowering positions.
  • 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 Southern China and Myanmar (Burma), growing in meadows, streamsides, hillsides, and forest margins.

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Requirements

Hardiness 3 – 9
Heat Zones 1 – 9
Plant Type Perennials
Plant Family Iris - Other
Exposure Full Sun, Partial Sun
Season of Interest Spring (Late)
Summer (Early)
Height 1' – 2' (30cm – 60cm)
Spread 1' – 2' (30cm – 60cm)
Spacing 18" – 20" (45cm – 50cm)
Water Needs Average, High
Maintenance Low
Soil Type Loam
Soil pH Acid, Neutral
Soil Drainage Moist but Well-Drained, Moisture Retentive, Poorly Drained
Characteristics Plant of Merit, Showy
Tolerance Deer, Wet Soil
Garden Uses Beds and Borders, Bog Gardens, Ponds and Streams, Rain Gardens
Garden Styles Informal and Cottage

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Peganum, Flickr

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.


Requirements

Hardiness 3 – 9
Heat Zones 1 – 9
Plant Type Perennials
Plant Family Iris - Other
Exposure Full Sun, Partial Sun
Season of Interest Spring (Late)
Summer (Early)
Height 1' – 2' (30cm – 60cm)
Spread 1' – 2' (30cm – 60cm)
Spacing 18" – 20" (45cm – 50cm)
Water Needs Average, High
Maintenance Low
Soil Type Loam
Soil pH Acid, Neutral
Soil Drainage Moist but Well-Drained, Moisture Retentive, Poorly Drained
Characteristics Plant of Merit, Showy
Tolerance Deer, Wet Soil
Garden Uses Beds and Borders, Bog Gardens, Ponds and Streams, Rain Gardens
Garden Styles Informal and Cottage

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