As robust and hardy as it is big and beautiful, Blue Diamond will amaze you and your garden visitors—even those who grow Japanese irises! Its 8" flowers, which are a rich shade of blue and set off with white striping in the centre, are about twice the size of typical Japanese iris blooms. Use it in a border or garden bed where the soil does well retaining moisture, or make it a part of a water garden. Stunning in fresh-cut arrangements. Count on this vigorous, low-maintenance perennial to fill your garden with enormous, colourful blooms for decades!