'SIEson' rose Description
Photo courtesy of Sievers Rolf
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Dark red Alba.
Registration name: SIEson
Purple and red. Strong fragrance. Very full (41+ petals), quartered bloom form. Once-blooming spring or summer.
Height: 6' to 8' (185 to 245cm). Width: 6' (185cm).
USDA zone 6a through 9b. Very hardy. plant in partial shade for best color.
Bred 1976, registered 1984.
The flowers are a rich crimson-red fading to ashen-gray...