Black hollyhock (Alcea rosea var nigra)
Black hollyhock bears intense, single, deep red-purple flowers that are near black, on dramatic, tall flower spikes. It’s easy to grow and perfect for planting in groups at the back of a sunny border. Cut down Alcea ‘Nigra’ after flowering to encourage fresh basal growth.
Winterhardy short-lived perennial
Height 180 cm
Width 50-60 cm
Spacing 60 cm (2-4 tk/m2)
Flowering time VII-VIII
Site sunny, moist, well drained rich soil.
Usage solo plant, groups