PEONIES, The Manual of the American Peony Society, ed. by James Boyd, Copyright 1928 by American Peony Society: Tree Peony Check-list.

Nuregararasu.

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 - Black Flowering group) Small size. Midseason. Muregarasu is classified as a remontant in some books. We classify it here because none of us has seen a winter bloom on this plant.

Rivière (1995):

'Muregarasu' 'Zusammenfügen der Kronen" Sorte japanischer Herkunft. Einfach, purpurrot schwachwachsend, soll im Winter blühen, was sich noch nicht bestätigt hat.

Carsten Burkhardt's Web Project Paeonia - The Peony Database

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