Benton Opal is a graceful Iris, very slightly ruffled white standards and falls with the tiniest hint of purple and a yellow-white beard.
Plant Iris in full sun and a well drained soil, face the rhizomes south and plant just above the soil surface.
Lift and divide the Iris clump every 4 years. Give a spring feed with a balanced fertiliser, we use Loo's Poo alpaca fertiliser.