Devon Tor
H. 'Devon Tor'
Has definite H. montana traits, however, this cultivar grows much smaller than the originally registered dimensions suggest. It has been updated to limit mature growth to around half!

Alternative: H. 'White Edger'
Plant Size
  Medium: 18" x 30"  
Leaf
  10" x 8"; green  
Flower
  Pale lavender  
Parentage
  H. montana selection x unknown  
Devon TorDevon Tor in a mixed display