Unsupported cultivar names
In the following list, cultivar names have been recorded without attribution or description and additional information is unavailable at the time of going to print.
History or knowledge of these cultivars should be sent to the Registrar for inclusion in the Addendum.
- T
- ‘Thetis’
- ‘Thibaut et Keteleer’
- ‘Thomas Hanbury’
- ‘Thor’
- ‘Thornlands Black’
- ‘Thumb Thumb’
- ‘Thunder’
- ‘Thunderer’
- ‘Tilda Toots’
- ‘Tinctum’
- ‘Tiny Tot’
- ‘Tip Top’
- ‘Tippoo Saib’
- ‘Titana’
- ‘Titus’
- ‘Tobey’
- ‘Tom Thumb Variegated’
- ‘Top Secret’
- ‘Topaze’
- ‘Torbay Delight’
- ‘Touchstone’
- ‘Tournament’
- ‘Trego’
- ‘Treloar’
- ‘Tresco Abbey’
- ‘Tricolor Nosegay’
- ‘Trildbum’
- ‘Triomph dAlost’
- ‘Triomphe’
- ‘Triomphe d Heffen’
- ‘Triomphe de Flandre’
- ‘Triomphe de Gand’
- ‘Triomphe de Gergovia’
- ‘Triomphe de la Tour’
- ‘Triomphe de M. Brichard’
- ‘Triomphe de Montrouge’
- ‘Triomphe de Paris’
- ‘Triomphe de Patis’
- ‘Triomphe de Westphalie’
- ‘Triomphe du Strees’
- ‘Trivulce’
- ‘Tropical Sunset’
- ‘True Oak’
- ‘Truffles’
- ‘Tuberosum’
- ‘Tully Tomkins’
- ‘Turner R.A.’
- ‘Turners Kate’ U
- ‘Uetty Lace’
- ‘Ulm Robin im Rosa’