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Apocynum cannabinum
hemp dogbane
Apocynum cannabinum
Dogbane is a perennial herbaceous plant native to North America. It typically grows to a height of 1-2 meters and features opposite leaves, small greenish-white flowers, and slender, bean-like seed pods. It is known for its strong, fibrous stems and milky sap. Historically, the plant's fibers have been used for making rope and textiles.
CategoryDetails
Plant TypePerennial plant
Medicinal UsageMedicinal Usage
Estimated Plant Lifespan5 years lifespan
Toxic to humansToxic to humans
ToxicityToxic to: Livestock, Dogs
Sun Requirements6+ hours direct sunlight (Full Sun)
Pollination

Method: Insect

Notes: Dogbane is primarily pollinated by insects, especially bees and butterflies. Planting companion plants that attract pollinators will help improve pollination.

Watering Requirements

Method: Deep watering

Frequency: Water regularly, especially during dry periods, allowing the soil to dry out slightly between waterings.

Notes: Avoid overwatering, as Dogbane prefers well-drained soil.

Humidity Requirements

Level: Moderate

Maintenance: Dogbane thrives in moderate humidity levels; no special measures are usually required.

Temperature Range

Min: -30°C

Max: 35°C

Alternative NamesBlack Indian Hemp, clasping dogbane, Indian hemp, common dogbane, prairie dogbane, amy root, rheumatism root, Cynopaema cannabinum, Apocynum sibericum, Apocynum sibiricum, Apocynum cannabinum typicum
Asclepias tuberosa
butterfly milkweed
Asclepias tuberosa
Butterfly weed shares similar growing conditions and benefits from the same pollinators as Dogbane, enhancing biodiversity in the garden.
Rudbeckia hirta
black-eyed Susan
Rudbeckia hirta
Black-eyed Susans are attractive to pollinators and beneficial insects that can help to control pests that may affect Dogbane.
Solidago canadensis
Canada goldenrod
Solidago canadensis

Goldenrod can spread aggressively and outcompete Dogbane for sunlight, water, and nutrients, especially in disturbed areas.

Dogbane Beetle

The Dogbane beetle is a common pest of Dogbane. They feed on the leaves, causing holes and defoliation. Infestations can weaken the plant.

Steps:

    • Rhizome Division: Dig up mature plants in early spring or late fall. Carefully separate the rhizomes, ensuring each section has healthy roots and buds.
    • Seed: Collect seeds from mature pods. Sow seeds directly in the garden in the spring or start indoors a few weeks before the last frost.
    • Plant in well-draining soil with full sun exposure. Water regularly until established.

Neem Oil

Effective natural insecticide for controlling Dogbane beetles and other pests.