Black Hollyhock


Black Hollyhock | Ecologically grown
Alcea rosea | Biennial | Heirloom

Planting tip: Start hollyhocks 6-8 weeks before planting out after the last frost date. Minimize root disturbance.



Seed depth : 1/4″

Plant spacing : 18″

Row spacing : 24″

Sun tolerance level : Full Sun

Days to germination : 12-21 Days

Days to maturity : 110-120 Days

Germination temperature : 15-21°C, optimally 18°C


Additional information

Flower seed count


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