Hosta alismifolia

Hosta alismifolia (Maekawa 1984/AHS 1993)

Subgenus Schmid Giboshi Zonneveld Giboshi
Section Schmid Nipponosta Zonneveld Nipponosta
Hosta Library species file Hosta alismifolia
Origin Gifu prefecture and Aichi prefecture, central Honshu, Japan.  See Map.
Habitat Sunny bogs and wet grass lands, open in spring, shaded by weeds and tall grasses in summer.
Japanese name Baran giboshi = Hosta that resembles Aspidistra elatior
Plant 41 cm diameter., 46 cm high (16 x 18"). A compact, fairly regular mound of many upright, lancet shaped leaves
Leaf Petiole 20–30 cm long (8–12"), erect, winged in the upper part, forming a vase-shaped plant, green.
Leaf 50–65(!) x 4.5–6.5 cm (20–26 x 2–3"), erect and in line with petiole, obovate-lanceolate, petiole transition decurrent, gradual, dull dark green above, glossy lighter green below. Slightly wavy edge
5–7 pairs of veins. 
Inflorescense Scape 70–80 cm (28–32") long, straight and erect, bending slightly in the upper part, light green. Sterile bracts 2–3, foliaceous, navicular, pointed; fertile bracts similar, smaller, 10–40 mm (1–1.8") long, 4–9mm (0.1–0.3") wide.
Raceme long, secund, 16–20 flowers, widely spaced.
Flowers 5 cm long, 3.5 cm broad (2 x 1.5"), pale purple uniformly suffused, no stripes, thin, narrow tube, perianth expanding, lily-shaped lobes spreading rapidly, wide open, at first held horizontal, then nodding on short, some flowers do not open or open with distorted tepals (see page 2) purple-dotted pedicels 4–7 mm (0.5") long, stamens equal or slightly longer than perianth.
Anthers purple.
Blooming time (End of) July
Fertility Described as being sterile, but can produce viable few seeds on occasion. Natural way of reproduction mostly through rhizomes
Growing conditions fairly sun tolerant, provided it gets a lot of moisture
Suitable for containers I don't know, but since it reproduces through rhizomes, I suppose it is less suitable for a container
Special remarks endangered species, rare in collections
In Hosta Mill Collection Yes
Sports  
Progeny
  • H. 'Gosan Gold Sword' = H. alismifolia x H. 'Ogon Hyuga' (W.G. Schmid 1989)