Hadspen White
H. 'Hadspen White'
Medium to light green leaves.

Alternative: H. 'Royal Standard'
Plant Size
  Large: 21" x 34"  
Leaf
  8" x 6"; green  
Flower
  White, fragrant (supposedly but we cannot detect anything)  
Parentage
  Registered as a H. sieboldiana hybrid but more likely from H. plantaginea  
Hadspen White