Black Hollyhock

Black hollyhocks (Alcea rosea) are a variety of hollyhocks that produce dark purple or black flowers on tall stems that can grow up to 6 feet (1.8 meters) in height. These flowers bloom in mid to late summer and can add drama and interest to any garden.

Hollyhocks are biennial plants, meaning they have a two-year life cycle. In the first year, the plant produces a rosette of leaves and in the second year, it sends up a tall flower stalk. Black hollyhocks prefer full sun and fertile, well-draining soil.

Black hollyhocks are relatively easy to grow and care for. They require regular watering, especially during hot and dry periods, and occasional fertilization. Hollyhocks are also prone to rust, a fungal disease that causes yellow-orange spots on the leaves, so it is important to keep the plant's foliage dry and remove any infected leaves.

 

In addition to their striking appearance, black hollyhocks have been used for medicinal purposes in the past. The flowers were believed to have astringent and anti-inflammatory properties, and were used to treat ailments such as sore throats and skin irritations.

 

Seeds per pack: 12

• Planting: Hollyhocks prefer full sun to partial shade and well-draining soil. Sow seeds directly into the soil in the spring or fall, or start seeds indoors 6-8 weeks before the last frost date.

• Watering: Hollyhocks need regular watering, especially during hot and dry periods. Keep the soil moist but not waterlogged.

• Fertilization: Hollyhocks are heavy feeders and benefit from regular fertilization. Apply a balanced fertilizer every 4-6 weeks during the growing season.

• Pruning: Hollyhocks may need staking to support their tall stems. You can also pinch back the growing tip of the plant to encourage branching and more flowers.

• Disease and pest control: Hollyhocks are susceptible to rust, a fungal disease that causes yellow-orange spots on the leaves. To prevent rust, keep the foliage dry and remove any infected leaves. Hollyhocks may also attract aphids