Dwarf comfrey blue – Symphytum grandiflorum ‘Wisley Blue’ | ↕10-25 cm | Ø9 cm

Dwarf Comfrey ‘Wisley Blue’
Symphytum grandiflorum ‘Wisley Blue’

Symphytum grandiflorum ‘Wisley Blue’ is a strong, low-growing perennial that is especially valued as a ground cover for shady spots. The plant forms dense carpets of fresh green leaves and blooms profusely with soft blue flowers in the spring. Ideal for borders, woodland gardens, and underplanting.

Features and care:

Latin name: Symphytum grandiflorum ‘Wisley Blue’
Dutch name: Dwarf Comfrey ‘Wisley Blue’
Height: 10–25 cm
Mature height: 20–30 cm
Width: 30–45 cm
Leaves: Fresh green, oval, softly hairy, and densely growing
Flowers: Soft blue, bell-shaped flowers in clusters
Blooming period: April to June
Growth habit: Strongly ground-covering, forms dense mats via rhizomes
Light requirement: Partial shade to shade
Soil: Humus-rich, moist but well-draining
Moisture: Likes a cool soil; does not tolerate prolonged drought
Pot size: Ø9 cm, suitable for group planting and underplanting
Pruning: Cut back the leaves after flowering if desired to stimulate new fresh growth. Remove old leaves in the spring.
Watering: Water regularly during dry spells, especially in shady borders where the soil dries out faster than expected.
Fertilization: Apply a layer of compost or organic fertilizer in the spring for vigorous growth.
Hardiness: Very hardy. The leaves die back in winter, but the plant will vigorously sprout again in spring.
Is Symphytum grandiflorum ‘Wisley Blue’ toxic?
Yes, like all comfrey species, this plant contains pyrrolizidine alkaloids and is slightly toxic if ingested. Not suitable for consumption by humans or pets.
Why choose Symphytum grandiflorum ‘Wisley Blue’?

• Excellent ground cover for shady spots
• Richly blooming in spring
• Strong, reliable, and low-maintenance
• Ideal for underplanting shrubs and trees
• Very hardy and fast-growing