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Plant category: herbaceous perennial
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Height range: 1.2 - 2 m
Large, deep purple flowers on this exceptionally robust form.
Distinctive glossy, sword-shaped spiny leaves and greenish-white flowers.
Tall panicles of small, creamy flowers.
Fluffy panicles of masses of tiny, starry, white or pink flowers.
Tall plant with dissected leaves and strong heads of fluffy pink flowers.