| Cultivar Name | Plant Size | Leaf Color | Variegation | Var Color | Origin | Flower Color | Season | Source | Registered |
| 'Raz Pizzazz' | Large | Med-Green | Streaked | Speckles | Nat-Sport | Near-White | July | Martin, Bud | --NR-- |
| 'Rebel Heart' | Medium | Blue/Green | Marginal | Yellow | Hybrid | - | - | Wasitis, Chick | --NR-- |
| 'Red Socks' | Medium | Med-Green | Medial | Yellow | Unknown | - | - | Goodwin, Randy | --NR-- |
| 'Remember Me' | Medium | Blue/Green | Medial | Creamy White | Hybrid | Pale-Lavender | July | Van Erven, D., Van Eijk-Bos, G. & Walters Gardens | .2001 |
| 'Rescapé Suto' | Large | Blue/Green | Marginal | Yellow | Unknown | - | - | Bastille, Jocelyn | --NR-- |
| 'Road Runner' | Medium | Med-Green | Marginal | Yellow | Unknown | - | - | Unknown | --NR-- |
| 'Rocket City' | Small | Yellow | - | - | Unknown | - | - | Goodwin, Randy | .2014 |
| 'Rosedale Justin's Folly' | Small | Yellow | Marginal | Green | Unknown | Light-Purple | July | Hadrava, Jerry | --NR-- |
| 'Roue de Fortune' | Small | Light-Green | - | - | Unknown | - | - | Bastille, Jocelyne | --NR-- |
| 'Royal Wedding' | Medium | Med-Green | Marginal | White | TC Sport | Pure-White | August to September | Bergeron, Amy & Walters Gardens | --NR-- |
| 'Russian Tiara' | Small | Med-Green | Marginal | Yellow | Nat-Sport | Light-Purple | July into August | Unknown | --NR-- |
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