Iris germanica 'Caldron' - 2026

Iris germanica ‘Caldron’ is a tall bearded iris cultivar introduced by Schreiner in 1957. It features vivid coppery-red flowers with a self-pattern and a rust-coloured beard. The blooms are of good size and extraordinary height, approaching red from the copper side. The plant possesses a nicely branched stem, which is scarce in reds, and exceptional vigour. It is a good breeder for reds, making it a valuable addition to any garden.

The plant forms upright clumps of sword-shaped, glaucous green foliage that remain attractive after flowering. It thrives in full sun and well-drained soil, making it suitable for borders, rock gardens, or as a focal point in the landscape. Regular division helps maintain vigour and flowering performance. The flowers attract pollinators and contribute to biodiversity, making it both decorative and ecologically beneficial.