| Cultivar Name | Plant Size | Leaf Color | Variegation | Var Color | Origin | Flower Color | Season | Source | Registered |
| 'Lady Renee' | Small | Yellow-Gold | | | Hybrid | Med-Lavender | June into July | Kwick, Charles | .2021 |
| 'Lake Erie' | Giant | Med-Green | - | - | Hybrid | Near-White | June into July | Ruh, Peter | .1998 |
| 'Lake Wales' | Giant | Blue/Green | - | - | Hybrid | - | - | Purvis, Owen & Purvis, Sue | --NR-- |
| 'Lakeside San Kao' | Large | Yellow | - | - | Hybrid | Pale-Lavender | July | Chastain, Mary | .1995 |
| 'Leopard Legs' | Medium | Light-Green | | | Hybrid | Med-Lavender | | Van Eechaute, Danny | --NR-- |
| 'Light Fantastic' | Giant | Med-Green | Streaked | White | Sport | Pale-Lavender | July | Philips, Hugo | --NR-- |
| 'Lightning Ridge' | Giant | Dark-Green | Marginal | White | Sport | Pale-Lavender | July | Trucks, Gary | --NR-- |
| 'Liliiflora' | Large | Med-Green | - | - | Sport | Pale-Lavender | July | Maekawa, Dr Fumio | --NR-- |
| 'Lone Star' | Large | Med-Green | Marginal | Yellow | Nat-Sport | Near-White | June into July | Hansen, Hans | .2021 |
| 'Louise Strub' | Medium | Med-Green | - | - | Hybrid | - | - | Zilis, Mark | --NR-- |
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