| No. | Cultivar Name | Plant Size | Leaf Color | Variegation | Var Color | Origin | Flower Color | Season | Source | Registered |
|
1
| 'Taika Oba' | Large | Med-Green | - | - | Hybrid | Pale-Lavender | July | Watanabe, Kenji | --NR-- |
|
2
| 'Teltow The Stork' | Large | Light-Green | | - | Unknown | Near-White | July into August | Entemann, Manfred | .2019 |
|
3
| 'Terre Haute' | Small | Med-Green | - | - | Unknown | - | July | Goodwin, Randy | .2009 |
|
4
| 'The Diplomat' | Small | Med-Green | Marginal | White | Sport | Near-White | July into August | Goodwin, Randy | .2016 |
|
5
| 'The Razor's Edge' | Small | Med-Green | - | - | Hybrid | Pale-Lavender | August to September | Terpening, Kent & The American Hosta Society | .2019 |
|
6
| 'Tokiwa Shisen' | Large | Med-Green | - | - | Sport | Pale-Lavender | - | Fukatsu, Shinya | --NR-- |
|
7
| 'Total Eclipse' | Medium | Dark-Green | Medial | Green | Sport | Med-Lavender | July | Goodenough, Rick | --NR-- |
|
8
| 'Tremont Ebony Angel' | Medium | Light-Green | - | - | Unknown | - | - | Livingston, Ron | --NR-- |
|
9
| 'Tremont Erubescence' | Small | Blue/Green | - | - | Unknown | - | - | Livingston, Ron | --NR-- |
|
10
| 'Tremont Mainstay' | Small | Blue/Green | - | - | Unknown | - | - | Livingston, Ron | --NR-- |
|
11
| 'Tsugaru Nishiki' | Large | Med-Green | Streaked | White | Sport | Light-Purple | August to September | Unknown | --NR-- |
|