| No. | Cultivar Name | Source | Plant Size | Leaf Color | Variegation | Var Color | Origin | Flower Color | Season | Registered |
|
1
| 'Abo Komachi' | Duplicate Name | - | - | - | - | Duplicate | - | - | --NR-- |
|
2
| 'Ah-so' | Unknown | Miniature | - | | - | Unknown | - | - | --NR-- |
|
3
| 'Aichi' | Unknown | Medium | Dark-Green | - | - | Sport | Light-Purple | August to September | --NR-- |
|
4
| 'Akabira Homare' | Unknown | Small | Med-Green | Marginal | White | Unknown | - | - | --NR-- |
|
5
| 'Akane' | Watanabe, Kenji & Hawes, James & Ruh, Peter & Ruh, Jean | Medium | Dark-Green | - | - | Unknown | Light-Purple | August to September | .2010 |
|
6
| 'Akebono' | Duplicate Name | - | - | - | - | Duplicate | - | - | --NR-- |
|
7
| 'Akebono Fukurin' | Unknown (Listed) | | | | | Unknown | | | --NR-- |
|
8
| 'Akebono Tokudama' | Duplicate Name | - | - | - | - | Duplicate | - | - | --NR-- |
|
9
| 'Aki' | Unknown | | | | | Duplicate | | | |
|
10
| 'Akikaze' | Duplicate Name | - | - | - | - | Duplicate | - | - | --NR-- |
|
11
| 'Akikaze Gibōshi' | Duplicate Name | - | - | - | - | Duplicate | - | - | --NR-- |
|
12
| 'Akita Nishiki' | Unknown | Large | Med-Green | Streaked | White | Nat-Sport | Pale-Lavender | June into July | --NR-- |
|
13
| 'Alba' | Unknown | Small | Med-Green | - | - | Hybrid | Pure-White | August | --NR-- |
|
14
| 'Albomarginata', H. kikutii | Duplicate Name | - | - | - | - | Duplicate | - | - | --NR-- |
|
15
| 'Albostricta' | Duplicate Name | - | - | - | - | Duplicate | - | - | |
|
16
| 'Alcebana Fukurin' | Unknown | Medium | Med-Green | Marginal | White | Unknown | - | - | --NR-- |
|
17
| 'Alcebana Kikurin' | Unknown | Small | Dark-Green | Marginal | White | Unknown | Light-Purple | - | --NR-- |
|
18
| 'Alcebana Kukurin' | Unknown | Miniature | Med-Green | Marginal | White | Unknown | Med-Lavender | August to September | --NR-- |
|
19
| 'Amaga Iwa' | Duplicate Name | | | | | xDuplicate | | | |
|
20
| 'Amagi Nishiki' | Sugita, Hajime | Small | Med-Green | Medial | Yellow | Sport | Light-Purple | September | --NR-- |
|
21
| 'Amagi-kintoki' | Sugita, Hajime | Small | Yellow | Marginal | Green | Hybrid | Light-Purple | September | --NR-- |
|
22
| 'Amakazari' | Nakayama, Toyozo | Medium | Dark-Green | - | - | Unknown | - | - | --NR-- |
|
23
| 'Amanogawa' | Wade, Van | Large | Med-Green | Streaked | Yellow | Unknown | - | - | --NR-- |
|
24
| 'Amanum' | Duplicate Name | - | - | - | - | Duplicate | - | - | --NR-- |
|
25
| 'Amanuma' | Maekawa, Dr Fumio & Ruh, Peter | Small | Med-Green | - | - | Hybrid | Light-Purple | July | .2002 |
|
26
| 'Amethyst Joy' | Sugita, Hajime & Ruh, Peter | Medium | Med-Green | - | - | Hybrid | - | July into August | .1999 .2000 |
|
27
| 'Amiga Iwa Gibōshi' | Duplicate Name | - | - | - | - | Duplicate | - | - | --NR-- |
|
28
| 'Amime Tachi' | Unknown | Medium | Med-Green | Streaked | Yellow | Sport | Light-Purple | August | --NR-- |
|
29
| 'Amplissima' | Unknown | Large | Med-Green | - | - | Unknown | Pale-Lavender | - | --NR-- |
|
30
| 'Andrew Jackson' | Sugita, Hajime & Ruh, Peter & Ruh, Jean | Giant | Blue/Green | - | - | Unknown | Near-White | June into July | .2001 |
|
31
| 'Ani Machi' | Ruh, Peter & Ruh, Jean | Medium | Med-Green | Medial | Greenish White | Unknown | Light-Purple | August to September | .2002 .2018 |
|
32
| 'Ani Machi Gibōshi' | Duplicate Name | - | - | - | - | Duplicate | - | - | --NR-- |
|
33
| 'Aoba Komachi' | Unknown | Small | Med-Green | - | - | Sport | Light-Purple | July into August | --NR-- |
|
34
| 'Aoba Omoto Gibōshi' | Duplicate Name | - | - | - | - | Duplicate | - | - | --NR-- |
|
35
| 'Aoba Tsugaru Komachi' | Unknown | - | - | - | - | Unknown | - | - | --NR-- |
|
36
| 'Aochidori' | Unknown | - | - | - | - | Unknown | - | - | --NR-- |
|
37
| 'Aojiku Iwa Giboshi' | Duplicate Name | - | - | - | - | Duplicate | - | - | |
|
38
| 'Aojiku Tama-no-Yuki' | Unknown | - | Med-Green | - | - | Unknown | - | - | --NR-- |
|
39
| 'Aoki' | Bailey, Liberty Hyde & The American Hosta Society | Large | Med-Green | - | - | Unknown | Pale-Lavender | July into August | --NR-- |
|
40
| 'Aomori Gold' | Muroya, Kimio & Zilis, Mark | Medium | Yellow | - | - | Sport | Deep-Purple | August to October | .2009 |
|
41
| 'Aomori Gold Star' | Muroya, Kimio & Zilis, Mark | Medium | Yellow | Marginal | Green | Sport | Light-Purple | August to September | .2009 |
|
42
| 'Aomori Select' | Zilis, Mark | Medium | Green | - | - | Sport | Light-Purple | July into August | .2009 |
|
43
| 'Aomori Setting Sun' | Muroya, Kimio & Zilis, Mark | Medium | Med-Green | Marginal | Yellow | TC Sport | Deep-Purple | August to October | .2009 |
|
44
| 'Aomori Sunrise' | Unknown | Large | Green | Medial | Yellow | Sport | Light-Purple | July into August | --NR-- |
|
45
| 'Aphrodite' | Maekawa, Dr Fumio & Schmid, W. George & Walek, Kevin & The American Hosta Society | Large | Med-Green | - | - | Sport | Pure-White | August to October | .2009 |
|
46
| 'Asagiri Ōba' | Unknown | Large | Med-Green | Streaked | White | Sport | Pale-Lavender | July | --NR-- |
|
47
| 'Asahi Comet' | Kato, Kiyoshi & Zumbar, Wm | Miniature | Med-Green | Marginal | Yellow | Sport | Pale-Lavender | September | .1984 |
|
48
| 'Asahi Star' | Unknown | Small | Green | Medial | Yellow | Sport | Light-Purple | September to October | --NR-- |
|
49
| 'Asahi Sunray' | Kato, Kiyoshi & Zumbar, Wm | Small | Med-Green | Marginal | Chartreuse | Sport | Pale-Lavender | September | .1984 |
|
50
| 'Asuka' | Unknown | Large | Med-Green | - | - | Unknown | Pure-White | September | --NR-- |
|
51
| 'Atsuba Gibōshi' | Duplicate Name | - | - | - | - | Duplicate | - | - | --NR-- |
|
52
| 'Aurea', H. longipes | Unknown | Medium | Yellow | - | - | Hybrid | Light-Purple | August to October | --NR-- |
|
53
| 'Aureocincta' | Unknown | Medium | Dark-Green | Marginal | White | Sport | - | - | --NR-- |
|
54
| 'Aureomarginata', H. montana | Maekawa, Dr Fumio & The American Hosta Society | Large | Med-Green | Marginal | Yellow | Sport | Pale-Lavender | July | .1987 |
|
55
| 'Aureomarginata', H. pulchella | Unknown | Small | Med-Green | Marginal | Yellow | Unknown | - | - | --NR-- |
|
56
| 'Aya-gasane' | Unknown | - | - | Streaked | - | Unknown | - | - | --NR-- |
|