Zebra is supposedly a naturally occurring mutation of 'White Ball', producing similar flowers, but is not a dwarf like its cousin. It gro...Read Morews long thick black stems with very large dark green leaves. But so far it has appeared to bloom on old wood only and is highly susceptible to powdery mildew.
Zebra is supposedly a naturally occurring mutation of 'White Ball', producing similar flowers, but is not a dwarf like its cousin. It gro...Read More