"The Shell Rose rose Description
Photo courtesy of RainArths
Found Rose, China / Bengale, Gallica / Provins, Hybrid China.
Red. None to mild fragrance. Full (26-40 petals), rosette bloom form. Once-blooming spring or summer.
USDA zone 6b through 9b (default).
Bob Edberg got [this rose] from John McGregor at the Huntington Botanical Garden. Paul Zimmerman gave a plant to Francois Joyeaux and he says it indeed is a Gallica/China [by DNA Test] but he could not give it a definite ID.
Info from Paul Zimmerman, 5/11/06