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Digitalis purpurea (Scrophulariaceae)
One of the loveliest, most important plant species that has been introduced from Europe and naturalized in various parts of North America. The flowers are numerous, on a spike, and range from a deep purple to lilac with conspicuous spots interlining the throat of the tubular flower. As a biennial, the leaves form a rosette the first year followed by the flower spike the next year. Prefers a nitrogen-rich sandy loam soil, in partial sun to full shade.
Average planting success with this species: 50%
Height: 2-4 feet
Germination: 20-30 days
Optimum soil temperature for germination: 60F-65F
Sowing depth: Surface Sow
Blooming period: June-September
Average seeds per pound: 4,360,000
Seeding rate: 1/2 lb. per acre
1 oz Covers: 5,445 sq. ft.
Suggested use: Shaded areas, wildflower mixes, waste places.
Miscellaneous: Foxglove is a source of digitalis prescribed by doctors to strengthen the heart and regulate its beat. Extremely poisonous! Enjoy, but do not eat!