Siberian Iris Blue King ('Bareroot) Bloom,Early and mid-spring, Perennial
Best grouped in sunny areas of ponds or water gardens. Also may be grown in moist border areas.
This perennial dies back to below ground level each year in autumn, then fresh new growth appears again in spring.
- Position: full sun or partial shade
- Soil: well-drained, moderately fertile soil
- Rate of growth: average
- Flowering period: June to July
Hardiness: fully hardy
Siberian flag iris, Iris sibirica, produces small, delicate flowers and narrow, bright green foliage. Flower petals are purple with white and yellow markings. It makes an excellent cut flower.
Iris sibirica ‘Blue King’ bears deep violet flowers with veined yellow throats, in May and June. Like all Siberian flag irises, it’s a rhizomatous, clump-forming perennial, requiring space to spread out.Like all Siberian flag irises, this is a clump-forming plant that needs space to spread out and prefers a moist, neutral to slightly acid soil in sun or partial shade. It looks best planted in bold drifts beside water and allowed to naturalise. It is particularly useful on difficult banks, where it will help to prevent erosion and over time will form large clumps. It can also be planted in a pot as a marginal plant for a pond.
Planting & Growing
Siberian Iris will grow to be about 22 inches tall at maturity, with a spread of 24 inches. When grown in masses or used as a bedding plant, individual plants should be spaced approximately 18 inches apart. It grows at a medium rate, and under ideal conditions can be expected to live for approximately 10 years.
This plant does best in full sun to partial shade. It is quite adaptable, prefering to grow in average to wet conditions, and will even tolerate some standing water. It is not particular as to soil type or pH. It is somewhat tolerant of urban pollution. This is a selected variety of a species not originally from North America. It can be propagated by division; however, as a cultivated variety, be aware that it may be subject to certain restrictions or prohibitions on propagation.
Garden care: Plant in soil that has been improved with well-rotted manure or garden compost and do not allow to dry out, particularly as the plant is getting established. If planted in a container, it will need dividing and repotting every couple of years in spring.