I bought Plum Frost last autumn. It's still in the original nursery pot (I plan to put it in the ground soon). Even still in the pot, it put out a lot of healthy-looking new growth this spring, and is starting to open a nice flush of flowers. I haven't seen any disease on it, even though the roses next to it on 2 sides got a lot of powdery mildew this spring. The color is a little deeper than ideal for my taste when it's all by itself, but the combination of its color next to a lighter pink is very pretty. Plus, it has a nice fragrance. I would say it's definitely a keeper!

Plum Frost
A powerfully fragrant, versatile rose for hedges or
backgrounds. Large sprays of deep reddish purple
flowers reversed in light lavender sparkle on the
hardy carefree shrubs all season, filling the air
with enticing citrus scent.
(Var: JACpluco 2007 - PPAF)
Color. Purple with lavender reverse
Height. 4’ Bloom Size. 3½”
Stem Length. 14”-18” Petal Count. 15
Bud Form. Pointed ovoid
Foliage . Glossy dark green
Fragrance. Strong, lemon
Parentage . (Sweet Chariot x Herbie) x
Perfume Perfection

(2009 J/P catalog)