Kirishima
H. 'Kirishima'
It looks like a cross between H. 'Saishu Jima' and H. 'Yakushima Mizu', narrow shiny chartreuse to green leaves.
Alternative: H. 'Quill'
Plant Size
  AHS mini Small: 9" x 18"  
Leaf
  4" x 1"; chartreuse  
Flower
  Lavender  
Parentage
  unknown  
KirishimaKirishima