Hybrid Musk. Yellow and pink, lighter reverse, ages to rose-pink . Mild fragrance. Small, single (4-8 petals), cluster-flowered, in large clusters, flat bloom form. Blooms in flushes throughout the season. USDA zone 6b and warmer. Height: 6' to 12' (185 to 365cm). Width: 6' to 10' (185 to 305cm). Louis Lens (1924-2001) (1988).