Salvia 'Black Knight'

Salvia 'Black Knight'

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Salvia 'Black Knight' is a large salvia, growing to 2 meters high and 1 meter wide. The flowers begin as almost black and fade to deep purple as they age. Flowering from late summer to through autumn.  Even though it is frost tender, I have been able to grow it in Tasmania in a protected sunny sheltered among other shrubs.  Prune and clean out by cutting down the old canes and twiggy growth in spring after frosts.