Hosta okamotoi

Hosta okamotoi (Y. Araki 1942/AHS 1993)

Subgenus Schmid Giboshi Zonneveld  
Section Schmid Picnolepis Zonneveld  
Hosta Library species file Hosta okamotoi
Origin Japan, central part of Kyoto Prefecture and the east-central part of Hyogo Prefecture.  See Map.
Habitat Adapted to thin soil on a rocky substrate in forested, isolated mountain valleys and on slopes. Occasionally, it can be found growing epiphytically on tree trunks.
Japanese name Okuyama Giboshi = hosta from Mount Okuyama
Plant 35–40 cm diameter, 30 cm high (14–16 x 12").
Leaf Petiole 12.5–15 cm (5–6") erect, purple-dotted with each “dot” being of linear shape.
Leaf 10–12.5 x 5–7.5 cm (4–5 x 2–3"), erect and in line with petiole, entire, subcordate, truncate, petiole transition rounded, cuspidate tip, flat or wavy surface, erect, fleshy-leathery, smooth, green above, lighter, opaque green below.
5–7 pairs of veins, sunken above, very projected, smooth below.
Inflorescense Scape 25–45 cm (10–18"), bending obliquely, purple-dotted entire length, smooth round.
Fertile bracts 1 cm long (0.3") navicular, thin, membranous, white to whitish green, with spotting or purple-tinted, imbricated, not withering. Raceme 20–25 cm (8–10"), 10-20 flowers, spaced apart.
Flowers outside first light purple then whitish , inside pale purple suffused, held erect in about horizontal position on long, strong horizontal or slightly ascending purple pedicels, perianth 5 cm (2") long, funnel-shaped, expanding, in the central part dilated bell-shaped tepals, spreading straightly to ±angled to the axis of perianth, thin narrow hexagonal tube.
 Anthers yellow background, purple dotted, look purple.
Blooming Time September
Fertility Fertile
Growing conditions  
Suitable for containers Yes
Special remarks Together with H. aequinoctiiantha and H. takiensis, it forms the late blooming part of the H. longipes-complex.
In Hosta Mill Collection Yes
Progeny None registered.