Herbaceous Perennial
A hardy, rhizomatous perennial with sword-shaped dark green ribbed foliage and tall, branched flowering stems holding 2 to 3 yellow-white flowers with brown-purple markings on the lower, drooping petals, these appearing from May to June
Position
Full sun, Partial shade
Soil Types
Chalk, Loam, Sand
Max Height
0.1-0.5 metres
Max Spread
0.1-0.5 metres