These irises are usually used in damp places and bog gardens, but they grow well also in drier places. They make robust clumps of long, narrow leaves, and the stems of narrow-petalled flowers stand up well above the foliage. There are just a few species, but many selected varieties.

Iris wilsonii is one of two yellow-flowered members of this group, which some people think should be combined with what we know as Iris forrestii (but under the older name I. wilsonii). Our plants have deeper yellow flowers than forrestii, but with similar rather narrow petals, and dark markings on the falls. Robust and easy to grow - and splendid when in flower.