All-Hydrangea Taxa excluding H. macrophylla

List compiled by Peter R Smith and updated January 2010 Please note: This list is a working document and may contain errors.  An asterix after the name indicates taxa that we have been unable to locate in any gardens or nurseries and we fear many of these taxa may already be lost from cultivation HOW YOU CAN HELP US TO IMPROVE THIS LIST We would be very pleased if you could:

  • Let us know if you notice any errors in the list.
  • Let us know if you grow any of the asterix marked plants in your garden or nursery or know where they are grown, (If you could donate a spare plant that would be fantastic!)
  • Supply us with a short description for any taxa currently lacking a description or with only a very brief description.
arborescens glabra *
With broad pale green puckered leaves an flat heads with scant sterile flowers Gardens... Read more
arborescens Invincible Spirit (Dr Tom Ranney, Mountain Crops research, USA in 2010)
Syn. ‘NCHAl A breakthrough in breeding has produced this, the first H. arborescens to... Read more
arborescens Invincible Spirit (Dr Tom Ranney, Mountain Crops research, USA in 2010)
Syn. ‘NCHAl A breakthrough in breeding has produced this, the first H. arborescens to... Read more
arborescens Pink Pincushion
With all fertile florets but an attractive pink colour Gardens found in the 28... Read more
arborescens subsp. discolor
Syn. H.cinerea.  name means of different colours With mostly sterile florets giving rounded heads... Read more
arborescens subsp. discolor ‘Sterillis’
Name means Sterile AGM 1984 Probably the same plant as H. a. ‘Grandiflora’ Gardens... Read more
arborescens subsp. radiata ‘Samantha’
Radiata is a subspecies of arborescens that has a great silver underside to the... Read more
arborescens subsp. radiata (Walt.)
Name means; With radiating parts With flat heads of fertile flowers surrounded by large... Read more