| No. | Cultivar Name | Leaf Color | Variegation | Var Color | Origin | Flower Color | Season | Source | Registered |
|
1
| 'Don't Tease Me' | Dark-Green | Medial | White | Nat-Sport | Pale-Lavender | July into August | White, Brian | --NR-- |
|
2
| 'Tamiami Blue' | Blue/Green | - | - | Hybrid | Near-White | July into August | Smith, Roger | .2013 |
|
3
| 'Temptress' (Hicks) | Med-Green | Medial | Yellow | Sport | Med-Lavender | July into August | Hicks, Gerry | .2017 |
|
4
| 'Terry witha Y' | Blue/Green | | | Nat-Sport | Pale-Lavender | July into August | Herold, Glenn | .2021 |
|
5
| 'The Ambassador' | Med-Green | Marginal | White | Unknown | - | - | Goodwin, Randy | .2013 |
|
6
| 'The Big Five-oh' | Dark-Green | - | - | Unknown | Near-White | June into July | Seaver, Charles | .2017 |
|
7
| 'The Diplomat' | Med-Green | Marginal | White | Sport | Near-White | July into August | Goodwin, Randy | .2016 |
|
8
| 'The Hulk' | Dark-Green | - | - | Unknown | Light-Purple | July | Bennerup, Pierre & Malloy, Alex | .1998 |
|
9
| 'The Minnesota Mafia' | Yellow | - | - | Hybrid | - | June into July | Naylor Creek Nursery & Larsen, Kim | .2009 |
|
10
| 'Thumb Nail' | Med-Green | - | - | Hybrid | Pale-Lavender | June into July | Aden, Paul | .1982 |
|
11
| 'Thumbelina' | Med-Green | Marginal | White | Hybrid | Light-Purple | July | Ward, Dr Dick & Ward, Jane | .1996 |
|
12
| 'Tiffney's Godzilla' | Med-Green | Marginal | Yellow | Sport | Pale-Lavender | July into August | Dreessen, Jack | .1996 |
|
13
| 'Time in a Bottle' | Yellow | | - | Hybrid | Deep-Purple | August to September | Hansen, Hans | .2019 |
|
14
| 'Timothy C. Morgan' | Blue/Green | Medial | White | Unknown | Pale-Lavender | July into August | Chamberlain, Steve | .2005 |
|
15
| 'Timothy J. Wright' | Yellow | - | - | Unknown | Med-Lavender | - | Chamberlain, Steve | .2015 |
|
16
| 'Tiny Twister' | Med-Green | - | - | Unknown | Light-Purple | July | Avent, Tony | --NR-- |
|
17
| 'Tokudama Hime' | Med-Green | - | - | Unknown | - | - | Unknown | --NR-- |
|
18
| 'Torchy' | Dark-Green | Marginal | White | Unknown | - | July into August | Zumbar, Wm | .1995 |
|
19
| 'Traveler' | Med-Green | Marginal | White | Unknown | - | - | Lydell, Ransom | --NR-- |
|
20
| 'Trixi' | Med-Green | - | - | Unknown | Med-Lavender | June into July | Dupre, Dirk | .2006 |
|
21
| 'True Heart' | Blue/Green | - | - | Unknown | - | June into August | Schulz, Ed | .2013 |
|
22
| 'Twisted Spearmint' | Dark-Green | Medial | White | Hybrid | Pale-Lavender | July into August | Heemskerk, Gerardus | .2021 |
|