The row of 3, 5, 7 or even more iris if placed in a line make a very graceful way to separate one area of the garden from another. The natural curve of the leaves makes an elegant gothic-arch effect. They could also be arranged against a plain wall, in a group, or any other layout you prefer.
All sizes: £195 each.
For scale, the tallest shown here are 180cm, and the shortest 90cm.
The swallowtail butterflies also seen in this picture are from £55.