Hosta pycnophylla

Hosta pycnophylla (F. Maekawa 1976/AHS 1993)

H. longipes f. hypoglauca

Subgenus Schmid Giboshi Zonneveld Giboshi
Section Schmid Picnolepis Zonneveld Rynchophorae
Hosta Library species file Hosta pycnophylla
Origin Japan, islands in the Setouchi Sea on the eastern side of Yamagushi Prefecture.  See Map.
Habitat Very variable. Found in very shady areas along a mountain stream and mostly in a wet and damp environment. Under these conditions the species develops clumps with few leaves (6-12) with elongated petioles and on average a somewhat smaller leaf size, although individual leaves can be much larger.  At higher elevations it forms a dense leaf mound, as it does in cultivation.
Japanese name Setouchi Giboshi = hosta of Setouchi (an inland sea)
Plant 45 cm diameter x 25 cm high (18" x 10").
Leaf Petiole 25–30 cm (10–12") spreading horizontally, light yellowish green, distinct red-purple spots (streaks) increasing in frequency towards the ground, pruinose below.
Leaf 20–25 cm x 17.5 cm wide (8–10 x 7"), entire, ovate to ovate cordate, with flat surface and wavy to pie-crust margin, dull rust green to olive-green, later with a slight sheen above, permanently and intensely pruinose, white below.
8–9 pairs of veins, projected below.
Inflorescense Scape 35 cm long (16"), projecting obliquely from crown, smooth, round, rust green.
Sterile bracts, 2–3, navicular, large; fertile bracts, large, imbricated, thick, slightly pruinose, light green, persistent. Raceme short,  densely imbricated, 10–20 flowers. Tepals in bud light purple to purple outside, inside coloration a colored field with 3 distinct darker stripes, 4.5 cm x 3 cm across the lobes (1.by 1.25"), carried horizontally on strong, 2.5 cm long (1.00") pedicels, equal or extending slightly beyond the bracts. Perianth expanding funnel-shaped, in the central part dilated bell-shaped, tepal lobes spreading ±angled to the axis of perianth,  recurving stamens exceeding the lobes, separated from the pistil.
Anthers deep purple.
Blooming Time August
Fertility Fertile
Growing conditions  
Suitable for containers Yes
Special remarks Especially useful in breeding, primarily for the white back trait.
In Hosta Mill Collection Yes
Sports
  • H. 'Hime Setouchi' (Masaoka/Japan) = H. pycnophylla sport
  • H. 'Paradise Red Delight' (Marco Fransen) = H. pycnophylla selection
Progeny
  • H. 'Aliyah's Grace' (Stuart Asch 2004) = H. pycnophylla x (unknown)
  • H. 'Amethyst Joy' (H. Sugita/P. Ruh 1999) = H. kiyosumiensis x H. pycnophylla
  • H. 'Belle of the Ball' (H. Sugita/P. Ruh 1998) = H. kiyosumiensis x H. pycnophylla
  • H. 'Bloody Mary' (H. Sugita/P. Ruh 1999) = H. longipes x H. pycnophylla
  • H. 'Chado' (G. Johnson 2004) = H. Iron Gate Supreme' x H. pycnophylla
  • H. 'Chariots of Fire' (J. Dishon/A. Malloy 2004) = H. ('Beatrice' x H. 'Garnet Prince') x H. pycnophylla
  • H. 'Chopsticks' (R. Herold) = H. pycnophylla x H. longipes f. hypoglauca
  • H. 'Condor' (H. Sugita/R. Lydell/P. & J. Ruh 2002) = H. longipes x H. pycnophylla
  • H. 'Cutting Edge' (H. Gowen, R. Benedict 1999) = H. Salute' x H. pycnophylla
  • H. 'Doctor Fu Manchu' (H. Sugita/P. Ruh 1998) = H. longipes x H. pycnophylla
  • H. 'Dragon's Blood' (H. Sugita/P. Ruh 1998) = H. longipes x H. pycnophylla
  • H. 'Elizabeth Levy' (Russ O'Harra) = H. pycnophylla hybrid
  • H. 'Elrod' (Janssen 2001) = H. Invincible' x H. pycnophylla
  • H. 'Eos' (Ullrich Fischer) = H. pycnophylla hybrid
  • H. ‘Gilt by Association' (K. Walek 2000) = H. pycnophylla x H. pycnophylla
  • H. 'Goldbrook Grebe' (S. Bond) = H. pycnophylla x H. longipes
  • H. 'Golden Memories' (Kevin C. Vaughn) = H. Sum and Substance' x H. pycnophylla
  • H. 'Heart of Gold' (J. Dishon 1996) = H. Sea Prize' x H. pycnophylla
  • H. 'High Kicker' (P. Aden 1987) = H. pycnophylla hybrid
  • H. 'Inland Sea' (H. Sugita/M. Zilis/P. Ruh 1998) = H. kiyosumiensis x H. pycnophylla
  • H. 'Jake' (Janssen) = H. Invincible' x H. pycnophylla
  • H. 'James A. Garfield' (H. Sugita/P. & J. Ruh 2003) = H. pycnophylla x H. kiyosumiensis
  • H. 'James Madison' (H. Sugita/P. & J. Ruh 2005) = H. longipes x H. pycnophylla
  • H. 'Jim Hawes' (Jim Hawes/Bill Meyer) = H. pycnophylla seedling
  • H. 'Kyoto' (H. Sugita/P. Ruh/J. Ruh 2001) = H. aequinoctiiantha x H. pycnophylla
  • H. 'Lake Huron' (R. Lydell 2001) = H. pycnophylla hybrid
  • H. 'Lavender Doll' (H. Sugita/P. Ruh 1998) = H. kiyosumiensis x H. pycnophylla
  • H. 'Lavender Stocking' (H. Sugita/P. Ruh 1998) = H. kiyosumiensis x H. pycnophylla
  • H. 'Lickity Split' (James Westberg) = H. Dorothy Benedict' x H. pycnophylla
  • H. 'Martin Van Buren' (H. Sugita/P. & J. Ruh 2005) = H. kiyosumiensis x H. pycnophylla
  • H. 'Nancy Gill' (Kevin C. Vaughn) = H. Sum and Substance' x H. pycnophylla
  • H. 'Paradise Blue Sky' (Marco Fransen) = H. sieboldiana 'Elegans' x H. pycnophylla
  • H. 'Pewter Frost' (J. Dishon 1996) = H. pycnophylla x H. montana
  • H. 'Quaker Lady' (H. Sugita/P. Ruh 1999) = H. kiyosumiensis x H. pycnophylla
  • H. 'Qualifying Queen' (H. Sugita/P. Ruh 1999) = H. kiyosumiensis x H. pycnophylla
  • H. 'Quill' (Herold 1996) = H. pycnophylla x H. yingeri
  • H. 'Raspberry Parfait' (H. Sugita/P. Ruh 1998) = H. longipes x H. pycnophylla
  • H. 'Red Imp' (R. Lydell) = H. longipes x H. pycnophylla 'Small Leaf'
  • H. 'Red Legs' (H. Sugita/P. Ruh 1999) = H. longipes x H. pycnophylla
  • H. 'Rosemoor' (Lady Anne Palmer 1995) = H. pycnophylla hybrid
  • H. 'Setsurei' (Gotemba Nursery, Japan) = H. hypoleuca x H. pycnophylla
  • H. 'Shirley Vaughn' (Kevin C. Vaughn) = H. William Lachman F2 seedling' x H. pycnophylla
  • H. 'Strawberry Delight' (H. Sugita/P. Ruh 1998) = H. longipes x H. pycnophylla
  • H. 'Swan Lake' (H. Sugita/P. Ruh 1998) = H. kiyosumiensis x H. pycnophylla
  • H. 'Tequila Sunrise' (Greg Johnson 2004) = H. Spritzer' x H. pycnophylla
  • H. 'Theo's Blue' (T. Leydens/Ben Zonneveld 1995) = H. pycnophylla x H. "Blue hosta"
  • H. 'Toots' (H. Sugita/J. Ruh/P. Ruh 1998) = H. pycnophylla x H. kiyosumiensis
  • H. 'Tossed Salad' (Kevin C. Vaughn) = H. Sum and Substance' x H. pycnophylla
  • H. 'Totally Twisted' (Alttara Scheer) = H. pycnophylla hybrid
  • H. 'Tutu' (Kevin C. Vaughn) = H. Donahue's Piecrust' x H. pycnophylla
  • H. 'White Heron' (H. Sugita/P. Ruh/P. & J. Ruh 2001) = H. kiyosumiensis x H. pycnophylla