Hosta tardiva

Hosta tardiva (T. Nakai 1930/1940)

Subgenus Schmid Giboshi Zonneveld  
Section Schmid Tardanthae Zonneveld  
Hosta Library species file Hosta tardiva
Origin Japan, Shikoku, central in the Kochi Prefecture and in the southwestern part of the Tokushima Prefecture.  See Map.
Habitat Mainly on hills and moist grasslands and meadows. It also is found along river valleys growing on moisture-rich banks.
Japanese name Nankai Giboshi
Korean name Hae-in-bi-bi-chu (= H. tardiva)
Plant 45–55 cm diameter x 30 cm high (18–22 x 12 in.); mature clumps much larger, forming a vase-shaped plant.
Leaf Petiole 17.5–25 cm (7–18"), erect, green, purple-spotted at the base.
Leaf 10– 20 cm x 9-13 cm wide (4–8 x 3.5– 5"), erect and in line with petiole, ovate-lanceolate, petiole transition broadly narrowed, sometimes blunt, tip acuminate, slightly undulate, wavy in the margin, erect, rigid, smooth, shiny light, elm green above, glossy lighter green below.
4-6 (8) pairs of veins, sunken above, very projected, smooth, below.
Inflorescense Scape 50–60 (90) cm long (20–24 (36)"), straight and erect, perpendicular to the ground, green, purplish red dotted lower third.
Fertile bracts short, navicular, grooved, thin, membranous, green, withering at anthesis, but not falling away.
Raceme 20–25 cm (8–10"), 10–20 flowers.
Flowers 4–4.5 cm long x 4 cm broad (1.5–2 x 1.50"), purple-violet, perianth expanding, funnel-shaped, in the central part slightly dilated bell-shaped, tepals spreading rapidly, recurving, widely open, blunt, short pedicels, projecting stamen.
Anthers purple.
Blooming Time September
Fertility Most cultivated plants are hybridized and sterile; natural plants are to some degree fertile.
Growing conditions  
Suitable for containers  
Special remarks Most of the plants cultivated under this name are not the true species.
In Hosta Mill Collection H. tardiva 'Gosan' (W.G. Schmid)