Hosta tibae

Hosta tibae (F. Maekawa 1984/AHS 1993)

Subgenus Schmid Giboshi Zonneveld Bryocles
Section Schmid Tardanthae Zonneveld Lamellatae
Hosta Library species file Hosta tibae
Origin Japan, Kyushu, Nagasaki Peninsula.  See Map.
Habitat grows abundantly and covers large, wooded areas.
Japanese name Nagasaki Giboshi
Plant 45–55 cm diameter x 30 cm high (18–22 x 12").
Leaf Petiole 17.5–25 cm (7–10"), erect, green, purple-spotted at the base.
Leaf 17.5–22.5 cm x 10–12.5 cm wide (7–9 x 4–5"), erect and in line with petiole, ovate to ovate-cordate, petiole transition broadly narrowed, tapering, tip acuminate, slightly undulate, wavy in the margin, erect, rigid, smooth, shiny light green above, glossy lighter green, glabrous below.
6–8 pairs of veins, sunken above, very projected, smooth, below.
Inflorescense Scape 50–60 cm long (20–24"), straight, erect, perpendicular to the ground, 3–6 branches per main scape with 5–12 flowers per branch, purple-dotted lower third.
Fertile bracts short, navicular, grooved, membranous, green, withering at anthesis, but not falling away.
Raceme several side branches, each with a raceme, central one long, lateral ones short, average to 80 flowers per scape, 25–30 on main raceme, the remainder on lateral racemes.
Flowers 5 cm long and 3.5 cm broad (2 x 1.25"), purple-violet, perianth expanding, funnel-shaped, in the central part slightly dilated bell-shaped, tepals spreading, short pedicels, projecting stamen.
Anthers yellow.
Blooming Time September
Fertility Fertile
Growing conditions  
Suitable for containers  
Special remarks  
In Hosta Mill Collection Yes
Sports  
Progeny
  • H. 'Carolina Sunshine' (T. Avent 1999) = H. 'Swoosh' x H. tibae
  • H. 'Iceberg' (Tony Avent 2000) = H. 'Swoosh' x H. tibae