Colossal
H. 'Colossal'
Medium green leaves make a massive mound.

Alternatives: H. 'Big John', H. 'Fortunei Gigantea', H. 'Green Piecrust'
Plant Size
  Giant: 28" x 80"  
Leaf
  15" x 12"; green  
Flower
  Pale lavender  
Parentage
  unknown  
Colossal