| No. | Cultivar | Plant Size | Leaf Color | Variegation | Var Color | Origin | Flower Color | Season | Source | Registered |
|
1
| 'Benedict's Regal Rhubarb' | Medium | Med-Green | Marginal | White | Unknown | Unknown | Unknown | Benedict, Dr Ralph (Herb) & Kuenster, Rod | .2010 |
|
2
| 'Blue Rhubarb' | Large | Blue/Green | | | Unknown | Unknown | Unknown | Tompkins, Chet | --NR-- |
|
3
| 'Honey Rhubarb' | Medium | Med-Green | | | Unknown | Unknown | Unknown | Unknown | --NR-- |
|
4
| 'Kempen Rhubarb Taste' | Large | Med-Green | | | Unknown | Unknown | Unknown | Butaye, Patrick | --NR-- |
|
5
| 'Little Rhubarb' | Large | Unknown | | | Unknown | Unknown | Unknown | Jentsch, Klaus | --NR-- |
|
6
| 'Regal Rhubarb' | Large | Med-Green | | | Unknown | Light-Purple | July to August | Sellers, Van | .1983 |
|
7
| 'Rhubarb Blue' | Large | Blue/Green | | | Unknown | Unknown | Unknown | Tompkins, Cynthia | --NR-- |
|
8
| 'Rhubarb Dream' | Medium | Unknown | | | Unknown | Unknown | Unknown | Jentsch, Klaus | --NR-- |
|
9
| 'Rhubarb Girl' | Large | Blue/Green | | | Unknown | Unknown | Unknown | Carlson, Monty & Carlson, Julie | --NR-- |
|
10
| 'Rhubarb Pie' | Medium | Med-Green | | | Sport | Pale-Lavender | August | Johnson, Irwin | .2001 |
|
11
| 'Royal Regal Rhubarb' | Large | Med-Green | Marginal | White | Sport | Light-Purple | July to August | Benedict, Dr Ralph (Herb) | --NR-- |
|
12
| 'Royal Rhubarb' | Large | Med-Green | | | Hybrid | Light-Purple | July to August | Pallone, D. & Ruh, Peter & Ruh, Jean | .2005 |
|