Plant Library

Hollyhocks Blacknight

Common Name: Hollyhocks

Botanical Name: Alcea

Variety: Blacknight

Blossom Color: N/A

Bloom Time: Jul-Aug

Zone: 4 to 9

Exposure: Full Sun

Mature Height: 5-6'

Mature Width: 18-24

Notes: Spotlight Series. A new series of stable, straight color, single flowered hollyhocks. Truly perennial. Blacknight has deep black-purple flowers midsummer. 5-6 ft. Cut. Hummingbirds. Borders.