| No. | Cultivar Name | Plant Size | Leaf Color | Variegation | Var Color | Origin | Flower Color | Season | Source | Registered |
|
1
| 'Akane' | Medium | Dark-Green | | - | Unknown | Light-Purple | August to September | Watanabe, Kenji & Hawes, James & Ruh, Peter & Ruh, Jean | .2010 |
|
2
| 'Blue Kanzashi' | - | Blue/Green | | - | Unknown | Unknown | Unknown | Watanabe, Kenji | --NR-- |
|
3
| 'Blue Star' (Watanabe) | - | Unknown | | | Duplicate | Unknown | Unknown | Watanabe, Kenji | |
|
4
| 'Daihakuryo' | Medium | Med-Green | Medial | White | Sport | Pale-Lavender | July | Watanabe, Kenji | --NR-- |
|
5
| 'Evening Star' | Medium | Med-Green | | - | Unknown | Med-Lavender | August to September | Watanabe, Kenji & Ruh, Peter | .2001 |
|
6
| 'Fuji Nishiki' | Large | Med-Green | Streaked | White | Sport | Unknown | Unknown | Watanabe, Kenji | --NR-- |
|
7
| 'Fujibotan' | Medium | Med-Green | | - | Unknown | Light-Purple | July into August | Watanabe, Kenji | --NR-- |
|
8
| 'Fuji-no-Akebono' | Large | Med-Green | Medial | Yellow | Sport | Pale-Lavender | July | Watanabe, Kenji | --NR-- |
|
9
| 'Fuji-no-Yubae' | Medium | Med-Green | Medial | Yellow | Sport | Pale-Lavender | July | Watanabe, Kazuyuki | --NR-- |
|
10
| 'Genrei' | Large | Med-Green | Marginal | White | Sport | Pale-Lavender | July | Watanabe, Kenji | --NR-- |
|
11
| 'Gohon Matsu Fukurin' | Large | Yellow | | - | Sport | Pale-Lavender | July | Watanabe, Yoshifumi | --NR-- |
|
12
| 'Hakumuo' | Medium | Med-Green | Medial | Creamy White | Unknown | Light-Purple | June into July | Watanabe, Kenji | --NR-- |
|
13
| 'Hakuyo' | Medium | Med-Green | | - | Hybrid | Light-Purple | August September October | Watanabe, Kenji & Ruh, Peter | .2002 |
|
14
| 'Hatsuyuki Nishiki' | Small | Med-Green | Medial | White | Sport | Pale-Lavender | July | Watanabe, Kenji | --NR-- |
|
15
| 'Iwato' | - | Unknown | | - | Unknown | Unknown | Unknown | Watanabe, Kenji | --NR-- |
|
16
| 'Kifukurin Ko Mame' | Miniature | Med-Green | Marginal | White | Sport | Light-Purple | August to September | Watanabe, Kenji & Ruh, Peter | .2002 .2018 |
|
17
| 'Kinba' | Large | Med-Green | | - | Hybrid | Light-Purple | August to September | Watanabe, Kenji & Walek, Kevin & The American Hosta Society | .2009 |
|
18
| 'Kinfukurin Ki Hachijo' | Small | Yellow | Marginal | Yellow | Sport | Med-Lavender | September | Watanabe, Kenji | --NR-- |
|
19
| 'Ko Iwa' | Miniature | Med-Green | | - | Hybrid | Unknown | Unknown | Watanabe, Kenji | --NR-- |
|
20
| 'Ko Seto' | Medium | Med-Green | | - | Unknown | Med-Lavender | August | Watanabe, Kenji | .2002 |
|
21
| 'Kurumazaki' | Large | Med-Green | | - | Hybrid | Pale-Lavender | July | Watanabe, Kenji | --NR-- |
|
22
| 'Nakafu Tsugaru Komachi' | Small | Yellow | Marginal | Green | Sport | Light-Purple | July into August | Watanabe, Kenji | --NR-- |
|
23
| 'O Fuji Fukurin' | Large | Med-Green | Streaked | Yellow | Sport | Pale-Lavender | Unknown | Watanabe, Kazuyuki | --NR-- |
|
24
| 'Ogon Dai Tokudama' | Large | Yellow | | - | Unknown | Unknown | Unknown | Watanabe, Kenji | --NR-- |
|
25
| 'Ogon Ko Urajiro' | - | Yellow | | - | Hybrid | Unknown | Unknown | Watanabe, Kenji | --NR-- |
|
26
| 'Otome-no-Ka' | Medium | Dark-Green | | - | Unknown | Light-Purple | August | Watanabe, Kenji & Ruh, Peter | .2002 |
|
27
| 'Reiho Nishiki' | Medium | Med-Green | Medial | Yellow | Sport | Pale-Lavender | July | Watanabe, Kenji | --NR-- |
|
28
| 'Reiko' | Medium | Blue/Green | Streaked | Speckles | Unknown | Unknown | Unknown | Watanabe, Kenji | --NR-- |
|
29
| 'Sagae' | Giant | Yellow | Marginal | Creamy White | Sport | Pale-Lavender | July into August | Watanabe, Kenji & Hagiwara, Eigon | .1987 |
|
30
| 'Saizaki Hime Iwa' | Small | Med-Green | | - | Sport | Deep-Purple | September | Watanabe, Kenji | --NR-- |
|
31
| 'Sanshoku Tsushima' | Small | Med-Green | | - | Hybrid | Light-Purple | August to September | Watanabe, Kenji | --NR-- |
|
32
| 'Seto-no-aki' | Medium | Dark-Green | | - | Unknown | Near-White | September | Watanabe, Kenji & Ruh, Peter | .2002 |
|
33
| 'Setsukei' | Small | Dark-Green | Medial | Yellow | Unknown | Unknown | Unknown | Watanabe, Kenji | --NR-- |
|
34
| 'Setsurei' | Large | Blue/Green | | - | Hybrid | Unknown | August | Watanabe, Kenji | --NR-- |
|
35
| 'Shichu-no-Tama' | Small | Light-Green | | - | Hybrid | Unknown | Unknown | Watanabe, Kenji | --NR-- |
|
36
| 'Shima Kabitan' | Small | Med-Green | Streaked | White | Hybrid | Unknown | Unknown | Watanabe, Kenji | --NR-- |
|
37
| 'Shirofukurin Hime Iwa' | Miniature | Dark-Green | Marginal | White | Sport | Pale-Lavender | September | Watanabe, Kenji & Ruh, Peter | .2002 |
|
38
| 'Shirofukurin Oba' | Large | Med-Green | Marginal | White | Sport | Pale-Lavender | July | Watanabe, Kenji | --NR-- |
|
39
| 'Taika Oba' | Large | Med-Green | | - | Hybrid | Pale-Lavender | July | Watanabe, Kenji | --NR-- |
|
40
| 'Tanayama Nishiki' | Medium | Med-Green | Marginal | Yellow | Unknown | Unknown | Unknown | Watanabe, Kenji | --NR-- |
|
41
| 'Tasagare Tokudama' | Large | Blue/Green | | - | Unknown | Unknown | Unknown | Watanabe, Kenji | --NR-- |
|
42
| 'Tsugaru Komachi' | Small | Med-Green | | - | Unknown | Light-Purple | July into August | Watanabe, Kenji | --NR-- |
|
43
| 'Urajiro Ko Iwa' | Miniature | Med-Green | | - | Hybrid | Unknown | Unknown | Watanabe, Kenji | --NR-- |
|
44
| 'Urajiro Ubatake' | Small | Med-Green | | - | Sport | Light-Purple | July | Watanabe, Kenji | --NR-- |
|
45
| 'Utsukushigahara Fukurin Oba' | Large | Med-Green | Marginal | Yellow | Sport | Pale-Lavender | July | Watanabe, Kenji | --NR-- |
|