| Cultivar Name | Plant Size | Leaf Color | Variegation | Var Color | Origin | Flower Color | Season | Source | Registered |
| 'Kempen Cream Star' | Medium | - | - | - | Hybrid | - | - | Butaye, Patrick | --NR-- |
| 'Kempen Golf Sticks' | Large | Med-Green | - | - | Unknown | - | - | Butaye, Patrick | --NR-- |
| 'Kempen Lightkeeper' | Large | Yellow | - | - | Unknown | - | - | Butaye, Patrick | --NR-- |
| 'Kempen Lutino Bird' | Medium | Med-Green | - | - | Unknown | - | - | Butaye, Patrick | --NR-- |
| 'Kempen Magenta Blue' | Large | Blue/Green | - | - | Hybrid | - | - | Butaye, Patrick | --NR-- |
| 'Kempen Red Twist' | Large | Med-Green | Streaked | White | Hybrid | Pale-Lavender | July into August | Butaye, Patrick | .2014 |
| 'Kempen Rhubarb Taste' | Large | Med-Green | - | - | Unknown | - | - | Butaye, Patrick | --NR-- |
| 'Kempen Salad Bar' | Medium | Med-Green | Streaked | White | Hybrid | - | - | Butaye, Patrick | --NR-- |
| 'Kempen Saw Blade' | Medium | Med-Green | Streaked | White | Hybrid | - | July | Butaye, Patrick | --NR-- |
| 'Kempen Sky High' | Medium | Blue/Green | - | - | Hybrid | Light-Purple | July into August | Butaye, Patrick | .2015 |
| 'Kempen Waving Shadow' | Medium | Light-Green | - | - | Hybrid | - | - | Butaye, Patrick | --NR-- |
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