Stunning flower spikes of indigo purple and black-purple stems.
18 in stock
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Planting: Water the plant well, remove the pot and plant in a hole large enough to avoid disturbing the rootball. Back-fill with soil mixed with compost. Water again and throughout the plants’ first year of growth.
Aftercare: Cut back dead flower spikes to encourage repeat flowers throughout the summer and remove overwintered withered foliage in spring. Divide every 3-4 years to maintain vigour.