catawbiense hybrid 'Catawbiense Grandiflorum', syn. 'Catawbiense Grandiflora'

Parentage: catawbiense x unknown, A. Waterer cross or selected clone, pre 1850.
Habit: Strong growth. Height 1.8 m in ten years.
Flowers: Lilac flowers with yellowish red blotch. Flower size 4.5 to 6 cm.
Leaves: Smooth, dark green, slightly shiny leaves.
Cold Hardiness: -22°F, -30°C