| No. | Cultivar Name | Plant Size | Leaf Color | Variegation | Var Color | Origin | Season | Source | Registered |
|
1
| 'Uberageous' | Giant | Blue/Green | Streaked | Yellow | Hybrid | August | Goodenough, Rick | --NR-- |
|
2
| 'Ufo' | Giant | Dark-Green | Marginal | Yellow | Sport | July into August | Fransen, Marco | --NR-- |
|
3
| 'Ugga Bugga' | Small | Blue/Green | Marginal | White | Unknown | July into August | Goodwin, Randy | .2017 |
|
4
| 'Uguis' | Large | Med-Green | - | - | Unknown | July into August | Unknown & Walek, Kevin & The American Hosta Society | .2009 .2018 |
|
5
| 'Uju' | Small | Dark-Green | Marginal | Yellow | Sport | July into August | Zilis, Mark | .2011 |
|
6
| 'Ultramarine' | Large | Blue/Green | - | - | Hybrid | August | Zilis, Mark | .2003 |
|
7
| 'Umezawa' | Small | Med-Green | Marginal | Yellow | Sport | August to October | Umezawa, Senkichi | --NR-- |
|
8
| 'Umezawa Nishiki' | Small | Med-Green | Streaked | Speckles | Sport | August to September | Umezawa, Senkichi | --NR-- |
|
9
| 'Unazuki Dwarf' | Small | Med-Green | - | - | Sport | August to October | Unknown | --NR-- |
|
10
| 'Unbridled Passion' | Medium | Light-Green | Marginal | White | Hybrid | July into August | Johnson, Greg | .2004 |
|
11
| 'Uncle Hirsch' | - | Blue/Green | Marginal | Yellow | Hybrid | August to September | Graves, Butch | .2008 |
|
12
| 'Undercover' | Large | - | - | - | Sport | July into August | Philips, Hugo | --NR-- |
|
13
| 'Undertow' | Small | Med-Green | - | - | Hybrid | August to September | Seaver, Charles | .2012 |
|
14
| 'Unexpected Pleasure' | Large | Dark-Green | Marginal | White | Hybrid | July into August | Asch, Stuart | .2000 |
|
15
| 'Unexpected Song' | Large | Dark-Green | - | - | Sport | July into August | Wilkins, Dr Jim | .2000 |
|
16
| 'Uniquely Catawampus' | Small | Med-Green | Marginal | White | Hybrid | August to September | Rosenberg, Marlene & Miller, Jeff | .2016 |
|
17
| 'Uniquely Go Big or Go Home' | Giant | Blue/Green | - | - | Unknown | July into August | Rosenberg, Marlene & Goodrich, Jon & Miller, Jeff | .2014 |
|
18
| 'Uniquely Purple People Eater' | Medium | Blue/Green | - | - | Unknown | July into August | Uniquely Hostas | .2020 |
|
19
| 'Uniquely Rails to Trails' | Giant | Blue/Green | - | - | Unknown | July into August | Miller, Jeff & Rosenberg, Marlene & Goodrich, Jon | .2014 |
|
20
| 'Uniquely Shirley Temple' | Medium | Dark-Green | Marginal | Light Green | Sport | August | Rosenberg, Marlene & Goodrich, Jon | .2020 |
|
21
| 'Unsinkable Molly Brown' | Large | Dark-Green | Marginal | Green | Sport | July into August | Postlewaite, Peter | .2013 |
|
22
| 'Up in Smoke' | Medium | Blue/Green | | - | Hybrid | July into August | Husemann, Jim | .2020 |
|
23
| 'Urajiro Hachijo', H. longipes latifolia | Medium | Med-Green | | | Nat-Sport | August to September | Unknown | --NR-- |
|
24
| 'Urajiro Izu Iwa' | Small | Dark-Green | - | - | Sport | August to September | Unknown & Walek, Kevin & The American Hosta Society | .2009 |
|
25
| 'Urajiro Musashino' | Small | Med-Green | - | - | Sport | August to September | Unknown | --NR-- |
|
26
| 'Urchin' | Small | Med-Green | - | - | Hybrid | July into August | Beilstein, Doug & Beilstein, Mardy | .2013 |
|
27
| 'Uzu-no-mai' | Miniature | Med-Green | - | - | Unknown | August | Unknown & Walek, Kevin & The American Hosta Society | .2009 |
|
28
| 'Uzu-no-mai Fukurin' | Miniature | Dark-Green | Marginal | White | Sport | August | Unknown | --NR-- |
|