Holly, Japanese or Box-Leaved
Holly, San Jose
Holly, Wilson
Hollyhock
Hollyleaf or Islay Cherry
Honeysuckle, Box
Honeysuckle, Box 'Red Tip'
Honeysuckle, Box Golden
Honeysuckle, Box Ground Cover
Honeysuckle, Coral
Honeysuckle, Goldflame or Coral
Honeysuckle, Privet
Honeysuckle, Tatarian
Honeywort
Hornbeam, Upright European
Hornbean, Pyramidal European
Horsechestnut, Common
Horsechestnut, Red
Horsechestnut, Red 'Ruby Flower'
Horsetail Reed