| No. | Cultivar Name | Source | Plant Size | Leaf Color | Variegation | Var Color | Origin | Flower Color | Season | Registered |
|
1
| 'Tardiana Group | Smith, Eric | - | - | - | - | Hybrid | - | - | --NR-- |
|
2
| 'Tardiflora Twisted' | Unknown | Small | Med-Green | - | - | Sport | Med-Lavender | September | --NR-- |
|
3
| 'Tea at Bettys' | Ford, Richard & Ford, Mary | Small | Med-Green | Marginal | Yellow | Sport | Light-Purple | July into August | .2009 |
|
4
| 'Terry Wogan' | Ford, Richard & Ford, Mary | Medium | Blue/Green | - | - | Sport | Pale-Lavender | August | .2006 |
|
5
| 'The Emerald Kris' | Jolliffe, Thomas | Large | - | - | - | Hybrid | - | - | --NR-- |
|
6
| 'Thea' | Stratham, Netta & Bond, Sandra | Medium | Med-Green | Streaked | White | Sport | Pale-Lavender | July into August | .1985 |
|
7
| 'Touchstone' | Bowden, Roger | Medium | Med-Green | Marginal | White | Sport | Light-Purple | July into August | --NR-- |
|
8
| 'Triple Double' | Jolliffe, Thomas | Medium | Blue/Green | - | - | Hybrid | - | - | --NR-- |
|
9
| 'Triple Quartet' | Jolliffe, Thomas | Large | - | - | - | Hybrid | - | - | --NR-- |
|
10
| 'Two by Four' | Smith, Eric | - | - | - | - | Duplicate | - | - | --NR-- |
|