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Gold Vein Iris

Iris chrysographes

Also called Black Iris

Gold Vein Iris
Photo: M.S. del, J.N.Fitch, lith., Public domain

Gold Vein Iris is a clump-forming perennial iris with dark, almost black flowers marked with golden yellow streaks. It thrives in moist soil in full sun and goes dormant after flowering.

Family
Iridaceae (Iris family)
Grows as
Bulb
Light
Full sun
Water
Keep soil consistently moist during the growing season, especially in spring and early summer, and water less while dormant.
Soil
Neutral to acidic, moist but well-drained soil, ideally kept damp.
Temperature
Hardy to about -20 °C (USDA zone 4); protect from extreme heat.
How easy
Easy
Safety
Toxic
Native range
Tibet to NE. Myanmar
Climate
temperate

About

Iris chrysographes, the black iris, is a plant species that belongs to the genus Iris. It is native to Southern China and Myanmar (Burma), growing in meadows, streamsides, hillsides and forest margins.

Other irises with black flowers include Iris nigricans (the national flower of Jordan), Iris petrana, Iris atrofusca, Iris atropurpurea, Iris susiana, and some varieties of Iris germanica.

How to grow it

Iris chrysographes requires a neutral or acid soil, in full sun. It is hardy to USDA zone 4, −20 °C (−4 °F). Propagation is by seeds or division in the spring. Cultivars cannot be reliably grown from seed, and must be divided. For cooler areas plants do best if planted in the spring.

This plant has gained the Royal Horticultural Society's Award of Garden Merit.

Other Iris plants

Iris acutiloba subsp. lineolata · Iris acutiloba · Iris adriatica · Iris afghanica · Iris alberti · Iris albomarginata · Iris alexeenkoi · Single Bract Iris · Iris antilibanotica · Stool iris · Iris arenaria · Iris assadiana

Text excerpted from the Wikipedia article Iris chrysographes by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.

The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.

Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.

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