Hosta sieboldiana

{{Short description|Species of plant in the genus Hosta}}{{distinguish|Hosta sieboldii}}

{{Speciesbox

|image=Hosta sieboldiana Elegans2UME.jpg

|image_caption=

|genus=Hosta

|species=sieboldiana

|authority=(Hook.) Engl.H.G.A.Engler & K.A.E.Prantl, Nat. Pflanzenfam. 2(5): 40 (1887)

|synonyms_ref=

|synonyms={{collapsible list|

• Funkia fortunei Baker
• Funkia glauca Siebold ex Miq.
• Funkia maculata Siebold ex Miq.
• Funkia sieboldiana Hook.
• Funkia sieboldii Lindl.
• Funkia univittata Siebold ex Miq.
• Hemerocallis sieboldiana G.Lodd.
• Hosta bella H.R.Wehrh.
• Hosta crassifolia Araki
• Hosta crispula F.Maek.
• Hosta cucullata (Witte) Koidz.
• Hosta elata Hyl.
• Hosta fluctuans F.Maek.
• Hosta fortunei (Baker) L.H.Bailey
• Hosta gigantea Koidz.
• Hosta glauca (Siebold ex Miq.) Stearn
• Hosta liliiflora (F.Maek.) Araki
• Hosta mira F.Maek.
• Hosta montana f. macrophylla W.G.Schmid
• Hosta montana f. ovatolancifolia (Araki) W.G.Schmid
• Hosta montana F.Maek.
• Hosta tokudama F.Maek.
• Niobe fortunei (Baker) Nash
• Niobe sieboldiana (Hook.) Nash
• Saussurea sieboldiana (Hook.) Kuntze

}}

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Hosta sieboldiana, Siebold's plantain lily, is a species of hosta native to Japan.{{cite web |url=http://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:536637-1 |title=Hosta sieboldiana Regel |author= |date=2017 |website=Plants of the World Online |publisher=Board of Trustees of the Royal Botanic Gardens, Kew |access-date=4 September 2020 }} A putative variety, Hosta sieboldiana var. elegans (called the giant blue hosta), has gained the Royal Horticultural Society's Award of Garden Merit, as has a putative variety of its synonym; Hosta fortunei var. aureomarginata, the gold-edged plantain lily.{{cite web|title= Hosta sieboldiana var. elegans giant blue hosta |url=https://www.rhs.org.uk/Plants/99289/Hosta-sieboldiana-var-elegans/Details |publisher=The Royal Horticultural Society |accessdate=4 September 2020 }}{{cite web|title= Hosta fortunei var. aureomarginata gold-edged plantain lily |url=https://www.rhs.org.uk/Plants/69718/hosta-fortunei-var-aureomarginata/Details |publisher=The Royal Horticultural Society |accessdate=10 May 2021 }} The cultivars 'Blue Angel', 'Blue Mammoth', and 'Olive Bailey Langdon' have also gained the RHS Award of Garden Merit.{{cite web|title= Hosta 'Blue Angel' (sieboldiana) plantain lily 'Blue Angel' |url=https://www.rhs.org.uk/Plants/67486/Hosta-Blue-Angel-(sieboldiana)/Details |publisher=The Royal Horticultural Society |accessdate=4 September 2020 }}{{cite web|title= Hosta 'Blue Mammoth' (sieboldiana) |url=https://www.rhs.org.uk/Plants/54932/Hosta-Blue-Mammoth-(sieboldiana)/Details |publisher=The Royal Horticultural Society |accessdate=4 September 2020 }}{{cite web|title= Hosta 'Olive Bailey Langdon' (sieboldiana) (v) |url=https://www.rhs.org.uk/Plants/169878/Hosta-Olive-Bailey-Langdon-(sieboldiana)-(v)/Details |publisher=The Royal Horticultural Society |accessdate=4 September 2020 }}