The Chugai Nursery, Yamamoto, Japan, Catalog 1940-1941: Tree peony, Tree peony, Winter-Flowering Peonies, (Everblooming Peonies) Winter flowering peonies have their beautiful flowers from the beginning of November till January and again they flower in spring together with ordinary spring flowering peonies, hence the name of ever-blooming peonies. Their flowers are as large and beautiful as spring flowering varieties. There is very rare exception of not flowering in winter. however, but in whitch case it will flower in next winter

(Japanese tree peony - Remontant Flowering group /Kan Botan) Outer 2 3 petals rimmed with creamy whitle Reddish purple flares at the base of petals. Small size. Light reddish-purple stigmas and sheath. Early midseason. Winter blooming late November to mid-January

Osti (1997)

SHIGUREGUMO, «Spessa nuvola di pioggia». Fiore rosso porpora, semidoppio, con 2 - 3 petali esterni bordati di bianco crema. Portamento molto contenuto. Fioritura precoce - mediana ma forzata o in sito adatto fiorisce d'inverno a fine novembre, inizio gennaio.

Kotobuki Bussan:

Rivière (1995):

'Shiguregumo' "Sprühregen" Sorte japanischer Herkunft. Gefüllt, glänzend purpum mit leuchtend gelbem Zentrum, soll im Winter blühen, was sich bislang nicht bestätigt hat.

Osti (1999)

SHIGUREGUMO "Drizzling Rain Cloud" Flowers: mauvish red, 2 to 3 outer petals with creamy white edges; semi-double, early to mid-season flowering. Habit: very compact. If forced or planted in a suitable position, this variety is winter flowering (from the end of November to the beginning of January).

in the Eisenhut nursery:

Carsten Burkhardt's Web Project Paeonia - The Peony Database

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