Foxglove (Digitalis purpurea)

Foxglove
Scientific Name: Digitalis purpurea L.
Family: Scrophulariaceae

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Common Foxglove in the NYBG greenhouse in mid April Recommended Temperature Zone:
sunset: 2-24,31-43
USDA: 5-10

Heat Tolerance: In Phoenix, it needs afternoon shade, and is still quite tricky
Sun Exposure: Light shade to full sun
Growth Habits: Biennial or short lived perennial, up to 5 feet tall (1.5 m), up to 2 feet in spread (60 cm)
Watering Needs: Regular water, good drainage
Propagation: Seeds in fall or division. Self seed easily

The leaves of the Common Foxglove are the source of the medicinal drug digitalis. All the parts of the foxglove are highly poisonous. They add height to the back of flower beds, but they will not last past spring.

Britton, N.L., and A. Brown. 1913. Illustrated flora of the northern states and Canada. Vol. 3: 204.

Cultural Practices:
They need a soil rich in organic matter to be at their best. Sow them in pots in late summer (early fall, or inside in Phoenix). The seeds should not be covered with soil, but just pressed in. Transplant in late fall. Set the young foxglove plants 1 foot apart (30 cm).

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