Taxonomy
Common Names by Region
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Digitalis purpurea is a biennial plant known for its tall spikes of tubular, bell-shaped flowers that are typically purple but can also be pink, white, or yellow. The flowers are speckled with darker spots inside. The plant grows to a height of 1.5 to 2 meters (4.9 to 6.6 feet) and has large, lance-shaped leaves that form a rosette at the base. The flowering spike emerges from the center of the rosette in the second year of growth.
Known Range
Native to Europe, specifically the western regions, including the British Isles, Spain, and Portugal. It has been widely naturalized in other regions, including North America and parts of New Zealand, often found in meadows, woodlands, and rocky slopes
Care Requirements
Pests/Diseases: Susceptible to aphids, slugs, and leaf spot diseases. Ensure good air circulation and avoid overhead watering to minimize fungal issues
Soil: Prefers well-drained, slightly acidic to neutral soil (pH 6.0-7.0). It can tolerate a range of soil types but performs best in humus-rich soils.
Watering: Requires regular watering, especially during dry periods, to keep the soil consistently moist but not waterlogged.
Light: Thrives in full sun to partial shade. In hotter climates, some afternoon shade can be beneficial.
Temperature: Hardy in USDA zones 4-9. Can tolerate frost but prefers cooler, temperate climates.
Fertilizer: Benefits from a balanced, slow-release fertilizer applied in early spring.
Propagation: Primarily grown from seeds. Seeds can be sown directly in the garden in late spring or started indoors several weeks before the last frost.
Pruning: Deadhead spent flowers to encourage additional blooming and prevent self-seeding. Cut back the entire plant after flowering to maintain its appearance and vigor.
Toxicity: All parts of the plant are toxic if ingested, containing cardiac glycosides that can affect the heart. Handle with care and keep away from pets and children.
