Hosta tardiva (T. Nakai 1930/1940)
|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.|
Petiole 17.5–25 cm (7–18"), erect, green, purple-spotted at
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.
Scape 50–60 (90) cm long (20–24 (36)"), straight and erect,
± perpendicular to the ground, green, purplish red dotted
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.
|Fertility||Most cultivated plants are hybridized and sterile; natural plants are to some degree fertile.|
|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)|