Description

Iris sibirica Colonel Mustard is valued for refined flowers and clean, upright foliage that stays attractive long after flowering. Siberian iris are tougher than they look, coping well with Irish winters and performing reliably in borders where soil holds some moisture. They are an excellent alternative to bearded iris for customers who prefer a more natural, meadow edge style and want plants that look tidy without constant intervention.

The flowers are carried above narrow, grassy foliage, giving a light, architectural look that suits both modern planting and traditional borders. After flowering, the foliage remains as a vertical accent, making it useful for structure through summer. It works well alongside ornamental grasses, geraniums, alliums, daylilies and moisture loving perennials, and it is particularly effective near ponds or in borders that do not dry out completely.

Plant in sun or light shade. Unlike many bulbs, Siberian iris tolerate heavier soils provided they are not waterlogged in winter, and they do well where the soil stays evenly moist. Water well in the first season to establish strong roots. Remove spent flower stems after blooming, then leave foliage to build next year’s display. Clumps can be divided every few years to maintain vigour and increase stock for customers.