| Cultivar Name | Plant Size | Leaf Color | Variegation | Var Color | Origin | Flower Color | Season | Source | Registered |
| 'Jade Cascade' | Giant | Med-Green | | - | Unknown | Pale-Lavender | July | Heims, Dan & Walek, Kevin & The American Hosta Society | .2009 |
| 'Jason and Katie' | Large | Blue/Green | Marginal | Yellow | Sport | Pale-Lavender | June | Hatfield, Handy & Walek, Kevin & The American Hosta Society | .2009 |
| 'Jewel of the Nile' | Large | Med-Green | Marginal | Yellow | Sport | Pale-Lavender | July | Walek, Kevin | .2000 |
| 'Joker' | Large | Med-Green | Marginal | Yellow | Sport | Pale-Lavender | July into August | Van Vliet, Arie & Walek, Kevin & The American Hosta Society | .2009 |
| 'Joshua's Banner' | Medium | Yellow | Marginal | White | Hybrid | Light-Purple | July | Jones, Gil & Walek, Kevin & The American Hosta Society | .2009 |
| 'Judy's Surprise' | Medium | Yellow | | - | Hybrid | Light-Purple | June into July | Walek, Kevin | .1996 |
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