Iris cristata ( Alba Crested iris )
Bearded Irises have dense airfoil rhizomes , giving raise to fan of sword - mold , usually broad dark-green leave , and simple or branched peak stems . Most bear multiple flowers per root word . The flowers have well - develop standard and falls , with a prominent “ beard ” of white or coloured hairs in the gist of each declination petal . Avoid eminent N fertiliser . Keep mulches away from leaves and rhizomes ....