Another of Todd's favourite Iris varieties, one that we often use at the Chelsea Flower Show. Very dark plum velvet falls with slightly contrasting upright violet standards. 'Black Swan' has a distinct ginger beard making it different from Iris 'Deep Black'. Tall and elegant to a height of 90cm.
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Iris like a very well drained soil and lots of sunshine to bake their rhizomes, this will help to produce more flower spikes the following year. They should not sit with their 'feet' in water, as they will not root.
The rhizomes should be placed on the soil surface preferable in a north south orientation with the foliage end pointing north and the rhizome facing south. The rhizomes should then be gently "snuggled" down so that less than half of the rhizome is buried.
Keep other plants from covering the rhizomes as they need to bake in the sun. Water in well for the first month to allow the roots to develop. Cut back spent foliage in late summer and split every 3 years for great flowering.