| No. | Cultivar | Plant Size | Leaf Color | Variegation | Var Color | Origin | Flower Color | Season | Source | Registered |
|
1
| "H82-01" | - | Unknown | | - | Duplicate | Unknown | - | Hatfield, Handy | --NR-- |
|
2
| "Hansen Seedling H10-429-1" | - | Unknown | | - | Unknown | Unknown | - | Hansen, Hans | --NR-- |
|
3
| "Krossa DX-1" | | - | | - | Duplicate | - | | Krossa, Gus | --NR-- |
|
4
| "Lachman Seedling L80-2-1" | - | Unknown | | - | Duplicate | Unknown | - | Lachman, Wm & Lachman, Eleanor | --NR-- |
|
5
| "Lachman Seedling L83-9-1" | - | Unknown | | - | Duplicate | Unknown | - | Lachman, Wm & Lachman, Eleanor | --NR-- |
|
6
| "Lachman Seedling L84-83-1" | - | Unknown | | - | Duplicate | Unknown | - | Lachman, Wm & Lachman, Eleanor | --NR-- |
|
7
| "Mackwoods No. 01" | | - | | - | Duplicate | - | | Duplicate Name | --NR-- |
|
8
| "Rudolph's #1" | Large | Dark-Green | | - | Unknown | Unknown | - | Rudolph, Thelma | --NR-- |
|
9
| "Summers No. 1" | | - | | - | Duplicate | - | | Summers, Alex | --NR-- |
|
10
| 'Avalon Wild One' | Medium | Yellow | Marginal | Yellow | Unknown | Unknown | - | Ricketts, Dennis | --NR-- |
|
11
| 'Bold One' | Large | Med-Green | Streaked | Speckles | Hybrid | Unknown | - | Aden, Paul | .1978 |
|
12
| 'Century One' | Large | Blue/Green | | - | Hybrid | Near-White | June into July | Moldovan, Steve | .1983 |
|
13
| 'Dilli One' | - | Unknown | | - | Unknown | Unknown | - | Becherer, Josef | --NR-- |
|
14
| 'Emerson's Small One' | Small | Med-Green | | - | Unknown | Light-Purple | July | Benedict, Dr Ralph (Herb) & Walek, Kevin & The American Hosta Society | .2009 |
|
15
| 'First Blend' | Medium | Light-Green | Medial | Yellow | Unknown | Unknown | - | Van Eechaute, Danny | --NR-- |
|
16
| 'Gothic 1' | Medium | Unknown | | - | Unknown | Unknown | - | Jentsch, Klaus | --NR-- |
|
17
| 'Grand One' | Medium | Dark-Green | Streaked | Yellow | Hybrid | Unknown | June into July | Kuenster, Rod | .2008 |
|
18
| 'Hanjas The One' | Small | Med-Green | Marginal | White | Unknown | Pure-White | - | Hansen, Jan Hurup | --NR-- |
|
19
| 'Henry the First' | Giant | Med-Green | | - | Hybrid | Near-White | June into July | Kwick, Charles | .2017 |
|
20
| 'Ichi-ban' | Miniature | Med-Green | Medial | White | Hybrid | Light-Purple | July | Hirose, Yoshimichi & Zilis, Mark | .2003 |
|
21
| 'Landscape One' | Small | Blue/Green | | - | Unknown | Unknown | June into July | Lighty, Richard | .2009 |
|
22
| 'Little One' | Small | Med-Green | | - | TC Sport | Light-Purple | July | Zilis, Mark | --NR-- |
|
23
| 'Misty One' | - | Unknown | | - | Unknown | Unknown | Unknown | Wade, Van | --NR-- |
|
24
| 'Neulpureum1' | Small | Dark-Green | | - | Hybrid | Unknown | - | Korean National Arboretum | --NR-- |
|
25
| 'Noble One' | | - | | - | Duplicate | - | | Duplicate Name | --NR-- |
|
26
| 'Number One' | Large | Blue/Green | | - | Hybrid | Pale-Lavender | June into July | Lighty, Richard | .1987 |
|
27
| 'One and Only' | Large | Yellow | | - | Hybrid | Pale-Lavender | June into July | Ward, Dr Dick & Ward, Jane | .2015 |
|
28
| 'One Cent' | - | Unknown | | - | Unknown | Unknown | - | Jentsch, Klaus | --NR-- |
|
29
| 'One Fine Day' | Medium | Med-Green | Marginal | Yellow | Hybrid | Near-White | June into July | Ward, Dr Dick & Ward, Jane | .2012 |
|
30
| 'One Iota' | Small | Blue/Green | Marginal | White | TC Sport | Light-Purple | July | Anderson, Jim | --NR-- |
|
31
| 'One Iota Streaked' | | - | | - | Duplicate | - | | Duplicate Name | |
|
32
| 'One Iota Supreme' | Small | Blue/Green | Streaked | White | Sport | Light-Purple | July | Schwarz, Jim | --NR-- |
|
33
| 'One Last Dance' | Large | Dark-Green | Marginal | Yellow | TC Sport | Near-White | July | Hansen, Hans & Walters Gardens | .2020 |
|
34
| 'One Man's Treasure' | Medium | Dark-Green | | - | Sport | Light-Purple | August September October | Benedict, Dr Ralph (Herb) & Solberg, Robert | .1999 |
|
35
| 'Opipara Noble One' | | - | | - | Duplicate | - | | Duplicate Name | --NR-- |
|
36
| 'Pretty One' | Large | Yellow | Streaked | Speckles | Hybrid | Near-White | June into July | Kuenster, Rod | .2008 |
|
37
| 'Red One' | Small | Dark-Green | | - | Unknown | Unknown | Unknown | Westberg, Jim | --NR-- |
|
38
| 'Ryan's Big One' | Giant | Blue/Green | | - | Hybrid | Near-White | June into July | Englerth, Lawrence & Ryan (Unknown) | .1982 |
|
39
| 'The Cemetery One' | Small | Med-Green | | - | Unknown | Unknown | - | Tompkins, Cynthia | --NR-- |
|
40
| 'The Graveyard One' | Small | Dark-Green | | - | Sport | Near-White | August | Tompkins, Cynthia | --NR-- |
|
41
| 'The Right One' | Medium | Blue/Green | Medial | Yellow | Hybrid | Med-Lavender | July | Elslager, Ed | --NR-- |
|
42
| 'Valley's One of a Kind' | - | Dark-Green | | - | Hybrid | Unknown | - | Linneman, Jeroen | --NR-- |
|
43
| 'Vercade's One' | | - | | - | Duplicate | - | | Duplicate Name | --NR-- |
|
44
| 'Verkade's One' | Small | Dark-Green | | - | Unknown | Unknown | Unknown | Verkade, John & Malloy, Alex | .2000 |
|
45
| 'Wee One' | Medium | Light-Green | | - | Unknown | Light-Purple | - | Livingston, Ron | --NR-- |
|
46
| 'Wild One' | Small | Dark-Green | | | Unknown | Light-Purple | - | Serafin, Viktoria | --NR-- |
|