Iris 'Black Swan'
bearded iris
The sumptuous petals of this bearded iris are deep purple, which look almost black in certain lights. They have a brown...
2 litre pot
£24.99
available to order from summer
3 × 2 litre pots
£55.99
£18.66 each
available to order from summer
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Plant description
The sumptuous petals of this bearded iris are deep purple, which look almost black in certain lights. They have a brown beard and appear in early summer on upright stems above the sword-shaped, grey-green leaves. Plant in big swathes for maximum impact, or mix it in smaller clumps in a sunny, well-drained border among other perennials. A tall variety that will need staking if planted in exposed positions.
Eventual height & spread
Flowering period
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
Plant features
Position
Full sun
Rate of growth
Average
Soil
Moderately fertile, moist, well-drained soil
Hardiness
Fully hardy
How to care for Iris Black Swan:
Plant shallowly with the upper part of the rhizome sitting on the surface of the soil, incorporating a low nitrogen fertiliser in the planting hole. After planting remove the upper-most third of the leaves to protect against wind-rock. In exposed areas stake with bamboo canes in early spring. Remove the stems after flowering from the base as this will concentrate the plant's energy into producing new rhizomes. Divide and replant about every three years.
Please note:
This perennial dies back to below ground level each year in autumn, then fresh new growth appears again in spring.
Warning
Humans/Pets: Harmful if eaten
