| Bob Solberg Hostas | Plant Size | Leaf Color | Variegation | Var Color | Origin | Flower Color | Season | Registered |
| 'Tarheel Blue' | Medium | Blue/Green | | - | Hybrid | Unknown | - | .2013 |
| 'The Mighty Quinn' | Large | Blue/Green | Marginal | White | Sport | Unknown | June into July | --NR-- |
| 'Thunder Boomer' | Medium | Blue/Green | | - | Hybrid | Pale-Lavender | July | .2007 |
| 'Tiki Bar' | Small | Dark-Green | Medial | Yellow | TC Sport | Light-Purple | July into August | .2022 |
| 'Tilt-A-Whirl' | Medium | Blue/Green | | - | Hybrid | Pale-Lavender | August to September | .2013 |
| 'Tiny Bubbles' | Small | Light-Green | | - | Hybrid | Pale-Lavender | July into August | .2008 |
| 'Tom Terrific' | Large | Yellow | | - | Hybrid | Pale-Lavender | July into August | .2019 |
| 'Tongue Twister' | Small | Dark-Green | | - | Hybrid | Pale-Lavender | September | .2008 |
| 'Top Shelf' | Medium | Blue/Green | Marginal | Yellow | Nat-Sport | Near-White | July into August | --NR-- |
| 'Tortilla Chip' | Medium | Yellow | | - | TC Sport | Pale-Lavender | July into August | .2002 |
| 'Touché' | Medium | Med-Green | Streaked | White | Sport | Pure-White | July into August | .2005 |
| 'Toy Soldier' | Medium | Blue/Green | Marginal | Yellow | Sport | Pale-Lavender | July | .2000 |
| 'Twice as Nice' | Small | Blue/Green | Medial | Yellow | Sport | Pale-Lavender | July into August | --NR-- |
| 'Twist of Lime' | Small | Yellow | Marginal | Greenish White | Sport | Light-Purple | July | .1991 |
| 'Twist Tie' | Small | Blue/Green | | - | Hybrid | Med-Lavender | - | .2019 |
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