| No. | Cultivar | Plant Size | Leaf Color | Variegation | Var Color | Origin | Flower Color | Season | Source | Registered |
|
1
| 'Cowboy' | - | Unknown | | - | Unknown | Unknown | - | Unknown | --NR-- |
|
2
| 'Cowboy Blue Chrome' | Medium | Blue/Green | | | Unknown | Unknown | - | Gamradt, John | --NR-- |
|
3
| 'Cowboy Drinking Cup' | Large | Med-Green | | - | Unknown | Near-White | June into July | Gamradt, John | .2020 |
|
4
| 'Cowboy Gun Metal Blue' | Large | Blue/Green | | | Unknown | Unknown | - | Gamradt, John | --NR-- |
|
5
| 'Cowboy Lemon Margarita' | Large | Light-Green | | | Unknown | Unknown | - | Gamradt, John | --NR-- |
|
6
| 'Cowboy Let Us' | Giant | Light-Green | | | Unknown | Unknown | - | Gamradt, John | --NR-- |
|
7
| 'Cowboy Man in Black' | Large | Dark-Green | | | Unknown | Unknown | - | Gamradt, John | --NR-- |
|
8
| 'Cowboy Up' | Giant | Med-Green | | - | Unknown | Unknown | July into August | Freeman, Franc | .2011 |
|
9
| 'Rhinestone Cowboy' | Medium | Med-Green | Marginal | Creamy White | Hybrid | Pale-Lavender | July | Elslager, Ed | .2000 |
|
10
| 'Rhinestone Cowboy Supreme' | Medium | Light-Green | Streaked | Yellow | Sport | Pale-Lavender | July | Elslager, Ed & Schwarz, Jim | --NR-- |
|
11
| 'Urban Cowboy' | Medium | Med-Green | Streaked | Yellow | TC Sport | Pale-Lavender | July | Zilis, Mark | .2009 |
|
12
| 'Valley's Space Cowboy' | Large | Blue/Green | | - | Hybrid | Pale-Lavender | June into July | Linneman, Jeroen | .2015 |
|