Hosta plantaginea: The Fragrant Species with Giant White Flowers

Hosta plantaginea: The Fragrant Species That Changed the Genus

Hosta plantaginea (formerly H. japonica), the August lily or fragrant plantain lily, is the only hosta species with large, fragrant, pure white flowers—and the genetic source of fragrance in all scented hosta cultivars. Native to China, it has been cultivated for centuries for its remarkable blooms.

Species Distinction

Unlike most hostas, H. plantaginea blooms in late summer (August–September) with huge, 4–6 inch long, funnel-shaped, pure white flowers that are intensely fragrant—sweet, honeysuckle-like, filling the evening air. The flowers open in late afternoon, earning the name "August lily." The foliage is bright green, glossy, and less corrugated than sieboldiana types, forming a mound 2 feet tall and 3–4 feet wide.

Sun and Heat Tolerance

H. plantaginea is unique among hostas for its tolerance of full sun (with moisture) and heat. It thrives in conditions that would scorch other species. This adaptability, combined with fragrance, makes it invaluable for southern gardens. Hardy in USDA zones 3–9. It requires a chilling period for best flowering.

Taxonomic Profile

• Family: Liliaceae
• Genus: Hosta
• Species: plantaginea

Genetic Legacy

Virtually all fragrant hosta cultivars ('Royal Standard', 'Guacamole', 'Honeybells', 'Fragrant Bouquet', etc.) trace their fragrance to H. plantaginea. Growing the species connects you to the genetic wellspring of scented hostas. It's also a magnificent plant in its own right—fragrant, heat-tolerant, and late-blooming.