Black Hollyhock - Seeds
Latin name: Alcea rosea var. nigra
Hollyhocks are an old-time favourite that are super easy to grow and bloom right up until the frosts. A biennial plant; it will flower the second year of cultivation. Its flowers can be used fresh or dried to dye fabrics.
Sow: Sow direct in the garden as soon as the risk of frost has passed or for earlier flowering, sow indoors 4-8 weeks before transplanting to the garden. Germination can take several weeks.
Seed depth: 6 mm
Germination time: 10-14 days at 21-24°C.
Soil: Rich, moist and well-drained
Location: Sun to partial shade
Flowering: From July until frost, the second year of cultivation.
Distance between plants: 45 cm
Height at maturity: 120 to 150 cm