| No. | Cultivar Name | Plant Size | Leaf Color | Variegation | Var Color | Origin | Flower Color | Season | Source | Registered |
|
1
| 'Amakazari' | Medium | Dark-Green | | | Unknown | Unknown | Unknown | Nakayama, Toyozo | --NR-- |
|
2
| 'Mito-no-hana' | Large | Med-Green | | | Unknown | Light-Purple | August | Nakayama, Toyozo | --NR-- |
|
3
| 'Mito-no-yuki' | Unknown | Unknown | | | Unknown | Unknown | Unknown | Nakayama, Toyozo | --NR-- |
|
4
| 'Toyo-no-omoide' | Large | Med-Green | | | Hybrid | Near-White | July | Nakayama, Toyozo & Lockwood, Mikky | .2018 |
|
5
| 'Yaburitsugi' | Medium | Dark-Green | | | Unknown | Unknown | Unknown | Nakayama, Toyozo & Lydell, Ransom & Walek, Kevin & The American Hosta Society | .2009 |
|
6
| 'Yarburitsugi' | Medium | Dark-Green | | | Unknown | Unknown | August | Nakayama, Toyozo, Lydell, Ransom, Walek, Kevin & AHS | .2009 |
|