| No. | Cultivar Name | Plant Size | Leaf Color | Variegation | Var Color | Origin | Flower Color | Season | Source | Registered |
|
1
| 'Raspberries and Cream' | Small | Med-Green | | | TC Sport | Light-Purple | August | Zilis, Mark | .2004 |
|
2
| 'Raspberry Beauty' | Medium | Light-Green | | | Hybrid | Light-Purple | August to September | Dishon, Jim | .1999 |
|
3
| 'Raspberry Ice Cream' | Giant | Yellow | Streaked | Speckles | Sport | Med-Lavender | July | Unknown | --NR-- |
|
4
| 'Raspberry Meringue' | Small | Dark-Green | Medial | Chartreuse | TC Sport | Deep-Purple | August | Zilis, Mark | .2003 |
|
5
| 'Raspberry Parfait' | Large | Med-Green | | | Hybrid | Light-Purple | September | Ruh, Peter | .1998 |
|
6
| 'Raspberry Sorbet' | Small | Dark-Green | | | Hybrid | Deep-Purple | August | Zilis, Mark & Lohman, Doug | .1999 |
|
7
| 'Raspberry Sorbet Supreme' | Small | Dark-Green | Streaked | Speckles | TC Sport | Light-Purple | August | Schwarz, Jim | --NR-- |
|
8
| 'Raspberry Sundae' | Small | Dark-Green | Medial | White | Unknown | Pale-Lavender | August to September to October | Korlipara, Harini & Gossett, Gary & Terra Nova Nurseries | --NR-- |
|
9
| 'Raspberry Truffle' | Small | Med-Green | Streaked | Speckles | TC Sport | Light-Purple | August | Zilis, Mark | --NR-- |
|
10
| 'Red Hot Poker' | Small | Dark-Green | Marginal | White | Hybrid | Light-Purple | August | Asch, Stuart | .2005 |
|
11
| 'Redbud' | Medium | Med-Green | | | Hybrid | Med-Lavender | June to July | Hicks, Gerry | .2017 |
|
12
| 'Redwood' | Large | Dark-Green | Streaked | White | Unknown | Light-Purple | Unknown | Carlson, Monty & Carlson, Julie | --NR-- |
|
13
| 'Regal Rhubarb' | Large | Med-Green | | | Unknown | Light-Purple | July to August | Sellers, Van | .1983 |
|
14
| 'Rhubarb Blue' | Large | Blue/Green | | | Unknown | Unknown | Unknown | Tompkins, Cynthia | --NR-- |
|
15
| 'Rhubarb Dream' | Medium | Unknown | | | Unknown | Unknown | Unknown | Jentsch, Klaus | --NR-- |
|
16
| 'Rhubarb Girl' | Large | Blue/Green | | | Unknown | Unknown | Unknown | Carlson, Monty & Carlson, Julie | --NR-- |
|
17
| 'Rhubarb Pie' | Medium | Med-Green | | | Sport | Pale-Lavender | August | Johnson, Irwin | .2001 |
|
18
| 'Rose Ann' | Unknown | Unknown | | | Unknown | Unknown | Unknown | Tompkins, Chet | --NR-- |
|
19
| 'Rosedale Daisy Mae' | Medium | Med-Green | Streaked | Yellow | Unknown | Pale-Lavender | July | Hadrava, Jerry | .1999 |
|
20
| 'Rosemary' | Large | Med-Green | Marginal | Yellow | Hybrid | Near-White | July to August | Parks, David | .2019 |
|
21
| 'Royal Regal Rhubarb' | Large | Med-Green | Marginal | White | Sport | Light-Purple | July to August | Benedict, Dr Ralph (Herb) | --NR-- |
|
22
| 'Royal Rhubarb' | Large | Med-Green | | | Hybrid | Light-Purple | July to August | Pallone, D. & Ruh, Peter & Ruh, Jean | .2005 |
|