Alcea rosea 'Blacknight'
Common Name: hollyhocks. Series Name: Spotlight Series
Zones 3 to 9.
Plants reach 5 to 6 feet tall and 24 inches wide.
Growth rate: Rapid.
Deep black-purple, single flowers are produced on tall, sturdy stalks in midsummer. Other than their fabulous blossoms, one of the best traits about the Alcea rosea Spotlight Series is that the plants are truly perennial, not biennial.
Thirty (30) plants per flat (or tray). Approximate Plug Measurements: 3 inches deep x 2 inches wide.