Iris Sibirica ‘Colonel Mustard’ is a standout iris prized for its bold, mustard-yellow falls accented with golden and coppery tones. Soft violet markings in the open blooms sits on narrow graceful sword-shape upright stems.
Flowering in late spring to early summer, Iris ‘Colonel Mustard’ with its copper-tones makes it an excellent choice for planting in mixed borders and containers.
Cultivate Dutch Iris in a sunny area of the garden with free-draining soil.
Plant the teardrop bulbs in autumn with their pointy tips facing up, 10-15cm deep and 15cm apart in the soil. For best effect, grow in large groups.
Silky flowers in vibrant hues bloom during June and July on stems 50-95cm tall. Excellent for cutting. Leave some foliage behind to die back naturally and feed the bulb for next year’s flowers.
Bulbs will naturalise easily when left undisturbed in a warm, dry location.