This fabulous cut flower is best grown in moist, fertile, well-draining soil in full sun to partial sunlight (never shade) with winter and spring moisture and summer dryness. Rudy has relaxed stellates of delicate, star-shaped, pale blue flowers with darker indigo-blue midveins and grass-like foliage. You won’t believe the huge impact of this delicate flower. Bulb size: 5 cm/up. Full to partial sunlight. Bloom time in horticultural zone 5: May/June. Plant 4" deep and 3" to 4" apart. HZ: 6-9. Height: 14" to 18".