Yellow Flag

Sulphur yellow flowers, often with brown or viol

Sulphur yellow flowers, often with brown or violet markings in July and August and ribbed, grey-green leaves. This native, yellow flag iris was once commonly found on marshy land and riversides. Ideal for planting at the margins of a large lake or pool, it flourishes in deep, acid soil enriched with well-rotted organic matter.Position: full sun or partial shadeDepth of water: 5-25cm (2-10in)Rate of growth: fast-growingFlowering period: July and AugustFlower colour: sulphur yellowOther features: all parts of the plant may cause severe discomfort if ingestedHardiness: fully hardyGarden care: Divide large clumps immediately after floweringGoes well with: Iris laevigata, Acorus calamus, Carex elata 'Aurea', Typha minima, Juncus effusus f. 'Spiralis', Sisyrichium californicum

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