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Alcea rosea 'Nigra' (Hollyhock 'Nigra')
'Nigra' is an upright biennial or short-lived perennial with rounded, lobed, rough, mid- to dark green leaves and long, terminal racemes of large, dark maroon flowers in summer.
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0.75m max. spread |
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2m max. height |
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2-5 years to maturity |
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