Hosta hypoleuca

Hosta hypoleuca (Murata 1962/AHS 1993)

Subgenus Schmid Giboshi Zonneveld Giboshi
Section Schmid Picnolepis Zonneveld Picnolepis
Hosta Library species file Hosta hypoleuca
Origin Japan, southern Chubu District in the mountains of eastern Aichi Prefecture and western Shizuoka Prefecture.  See Map.
Habitat Small populations growing on exposed rocky outcrops and always damp rock walls in ravines and river valleys.
Japanese name Urajiro Giboshi = Hosta with the white underside
Plant 45–65 cm diameter x 25–35 cm high (18–26 x 10–14").
Sprouts (cataphylls) pruinose, very dark green with a purple cast; green leaves unfurling in a twisted and contorted fashion.
Leaf Petiole 15–25 cm (6–10") spreading horizontally, light yellowish green, pruinose below.
Leaf 25–45 x 20–30 cm (10–18 x 8–12"), entire, cordate to ovate cordate, flat, surface, undulate margin, not rugose, initially pruinose yellowish green or green later with a slight sheen above, permanently intensely white-coated below. The extremes given for leaf size occur in the wild, where the taxon grows only 1–3 very large leaves.
9–11 pairs of veins, widely spaced, projected below, transverse veins between principal veins very prominent.
Inflorescense Scape 45–65 cm (18–26"), in the wild projecting obliquely to sub-horizontally from the rock faces, in cultivation leaning with raceme occasionally becoming sub-horizontal, smooth, round, light green, in the lowest part intensely dark-purple spotted.
Sterile bracts, 2–3, very large, persisting; upper fertile bracts large, clasping the flowers, thick, slightly pruinose, navicular, very light green, strongly persistent and still green after anthesis.
Raceme short, 10–20 cm (4–8"), densely imbricated, 10–20 flowers.
Flowers white outside, shiny, lightly purple suffused in the center of the lobe (sometimes white entirely, 4.5 x 3 cm across the lobes (1.75 x 1.25"), carried horizontally on strong, 2.5 cm long (1") pedicels which are equal to the lower and extending beyond the upper fertile bracts; perianth expanding, funnel-shaped, in the central part dilated bell-shaped, lobes spreading @+angled to the axis of perianth; stamens equal to or slightly extended beyond the lobes.
Anthers dark purple.
Capsules round, light green.
Blooming Time July
Fertility Fertile
Growing conditions  
Suitable for containers  
Special remarks  
In Hosta Mill Collection Yes
Sports
  • H. 'Maekawa' (Maekawa/P. Aden 1985) is a named form or a H. hypoleuca selfed seedling.
Progeny
  • H. 'A Blue Streak' (E. Elslager 2001) = H. 'First Impressions' x H. hypoleuca
  • H. 'A Lady in Blue' (E. Elslager 2004) = H. 'William Lachman' x H. hypoleuca
  • H. 'A Many-Splendored Thing' (E. Elslager 1999) = H. 'Dorothy Benedict' x H. hypoleuca
  • H. 'Arc de Triomphe' (E. Elslager 2000) = H. 'Foxy Doxy' x H. hypoleuca
  • H. 'Arch Duke' (R. Lydell 2000) = H. hypoleuca x H. 'Cartwheels'
  • H. 'Azure Snow' (P. Ruh 1991) = H. hypoleuca seedling
  • H. 'Band of Gold' (E. Elslager 1999) = H. 'Dorothy Benedict' x H. hypoleuca
  • H. 'Bedford Blue' (I. Chrystal) = H. hypoleuca x H. 'Halcyon'
  • H. 'Big Top' (E. Elslager 2003) = H. William Lachman' x H. hypoleuca
  • H. 'Blue Ridge Mountains' (E. Elslager 2001) = H. Galaxy' x H. hypoleuca
  • H. 'Blueberry Pancakes' (E. Elslager 2002) = H. Sea Prize' x H. hypoleuca
  • H. 'Bluegrass Country' (E. Elslager 2001) = H. Sea Prize' x H. hypoleuca
  • H. 'Butternut Hill' (L. Englerth/P. & J. Ruh 2001) = H. hypoleuca x H. hypoleuca
  • H. 'Cascading Waters' (D. Dean 2005) = H. Liberty Bell' x H. hypoleuca
  • H. 'Celestial' (E. Elslager 2000) = H. Dorothy Benedict' x H. hypoleuca
  • H. 'Clambake' (G. Goodwin 2000) = H. hypoleuca hybrid
  • H. 'Color a la Mode' (E. Elslager 2000) = H. Color Fantasy' x H. hypoleuca
  • H. 'Doublemint' (E. Elslager 2001) = H. Herb Benedict' x H. hypoleuca
  • H. 'Elkhart Lake' (C. Visser) = H. hypoleuca x H. 'June'
  • H. 'Fickle Blue Genes' (E. Elslager 2000) = H. William Lachman' x H. hypoleuca
  • H. 'Final Answer' (E. Elslager 2000) = H. Dorothy Benedict' x H. hypoleuca
  • H. 'Floppy Disk' (E. Elslager 2003) = H. Sea Prize' x H. hypoleuca
  • H. 'Gazpacho' (E. Elslager 2003) = H. Sea Prize' x H. hypoleuca
  • H. 'Glacier Cascade' (M. Zilis/P. Cross 1999) = H. kikutii x H. hypoleuca
  • H. 'Gosan Sunproof' (W. George Schmid) = H. hypoleuca hybrid
  • H. 'H. D. Thoreau' (Walden West/C. Purtymun 1999) = H. Sagae' x H. hypoleuca
  • H. 'High-rise' (E. Elslager 2003) = H. Sea Prize' x H. hypoleuca
  • H. 'Honey Hill Wrinkled Rainslicker' (M. Erb 1999) = H. Fragrant Bouquet' x H. hypoleuca
  • H. 'Hottie' (E. Elslager 2002) = H. (x 'Galaxy') x H. hypoleuca
  • H. 'King D.' (S. & S. Zolock 2001) = H. hypoleuca hybrid
  • H. 'Kiwi Hippo' (L. Phillips/B. Sligh 1999) = H. hypoleuca x H. longipes
  • H. 'Lakeside Breaking News' (M. Chastain 2000) = H. "LBSR" x H. hypoleuca
  • H. 'Lakeside Lagoon' (M. Chastain 1998) = H. hypoleuca x H. "blue seedling"
  • H. 'Lasting Impressions' (E. Elslager 2002) = H. First Impressions' x H. hypoleuca
  • H. 'Lemon Meringue' (P. Ruh 1991) = H. hypoleuca seedling
  • H. 'Lighthouse' (E. Elslager 2003) = H. (F-1 seedling 'Dorothy Benedict') x H. hypoleuca
  • H. 'Limestone Lover' (E. Schulz 2002) = H. hypoleuca hybrid
  • H. 'Maggie May' (Bridgewood Gardens 2001) = H. hypoleuca hybrid
  • H. 'Magnificent Obsession' (E. Elslager 1999) = H. Galaxy' x H. hypoleuca
  • H. 'Merry Sunshine' (E. Elslager 1998) = H. Fascination' x H. hypoleuca
  • H. 'Old Black Magic' (E. Elslager 1999) = H. Sea Prize' x H. hypoleuca
  • H. 'Olive Oil' (J. Dishon 1996) = H. Yellow Splash' x H. hypoleuca
  • H. 'Ooh La La' (E. Elslager 2000) = H. Sea Prize' x H. hypoleuca
  • H. 'Roller Coaster' (E. Elslager 2001) = H. Dorothy Benedict' x H. hypoleuca
  • H. 'Sails at Sunset' (E. Elslager 2001) = H. Dorothy Benedict' x H. hypoleuca
  • H. 'Setsurei' (Gotemba Nursery, Japan) = H. hypoleuca x H. pycnophylla
  • H. 'Show Stopper' (R. Claeys) = H. hypoleuca x H. plantaginea
  • H. 'Skyward' (E. Elslager 2000) = H. Dorothy Benedict' x H. hypoleuca
  • H. 'Splendor' (E. Elslager 2000) = H. Galaxy' x H. hypoleuca
  • H. 'Stellar by Starlight' (E. Elslager 2000) = H. Dorothy Benedict' x H. hypoleuca
  • H. 'Sun Chaser' (E. Elslager 2004) = H. (Dorothy Benedict' F-1) x H. hypoleuca
  • H. 'Talladega' (C. Visser) = H. hypoleuca x H. 'June'
  • H. 'Thor' (P. Ruh 1994) = H. hypoleuca x H. hypoleuca
  • H. 'Topsy-turvy' (E. Elslager 2000) = H. William Lachman' x H. hypoleuca
  • H. 'Uncle Albert' (Bridgewood Gardens) = H. hypoleuca x H. kikutii caput-avis
  • H. 'Wild Blue Yonder' (E. Elslager 2001) = H. Sea Prize' x H. hypoleuca
  • H. 'Zydeco' (E. Elslager 2003) = H. Sea Prize' x H. hypoleuca