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Algerian Iris

Iris unguicularis

Also called Winter Flowering Iris

Algerian Iris
Photo: Magnus Manske, CC BY-SA 3.0

Algerian iris is a winter-flowering rhizomatous iris from North Africa and the eastern Mediterranean, with fragrant lilac flowers on short grassy evergreen clumps. Give it poor, free-draining soil, a sunny sheltered spot and little water in summer, and it is one of the few irises that bloom in winter.

Family
Iridaceae (Iris family)
Grows as
Bulb
Light
Full sun, Part shade
Water
Water sparingly in summer; it prefers dry conditions while dormant and is prone to rot in wet soil.
Soil
Poor to moderate, very well-drained, alkaline to neutral soil; sandy or gritty mixes suit it well.
Temperature
Hardy to about -10 °C in many forms; protect the white 'Alba' form in severe frost.
How easy
Easy
Native range
NW. Africa, E. Medit.
Climate
subtropical

About

Iris unguicularis (syn. Iris stylosa), the Algerian iris, is a rhizomatous flowering plant in the genus Iris, native to Algeria, Greece, Turkey, Western Syria, and Tunisia. It grows to 30 centimetres (12 in), with grassy evergreen leaves, producing pale lilac or purple flowers with a central band of yellow on the falls. The flowers appear in winter and early spring. They are fragrant, with pronounced perianth tubes up to 20 cm (7.9 in) long.

This plant is widely cultivated in temperate regions, and numerous cultivars have been selected for garden use, including a slightly more tender white form 'Alba', and a dwarf variety I. unguicularis subsp. cretensis. The cultivar 'Mary Barnard' has gained the Royal Horticultural Society's Award of Garden Merit.

Safety

In 2013, a chemical analysis study was carried on Iris loczyi and Iris unguicularis as both plants are known as medicinally important.

The rhizome of Iris unguicularis contains 1,3-O-diferuloylsucrose, 5,7-dihydroxy-6-methoxychromone, irilone, 4′,5,7-trihydroxy-6-methoxyflavanone, tectorigenin, kaempferol, 4′,5,7-trihydroxy-3′,8-dimethoxyflavanone, 8-methoxyeriodictyol, hispidulin and mangiferin.

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 unguicularis 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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