| No. | Cultivar Name | Plant Size | Leaf Color | Variegation | Var Color | Origin | Season | Source | Registered |
|
1
| 'Hadspen Hawk Streaked' | Medium | Blue/Green | Streaked | Yellow | Sport | August to September | Unknown | --NR-- |
|
2
| 'Hadspen Mystique' | Large | Dark-Green | | - | Hybrid | August to September | Smith, Eric & Ruh, Peter & Ruh, Jean | .2003 |
|
3
| 'Hadspen White' (Eric Smith) | Large | Light-Green | | - | Hybrid | August to September | Smith, Eric & Ruh, Peter & Ruh, Jean | 2001 |
|
4
| 'Hadspen White' (Europe) | Large | Med-Green | | | Unknown | August to September | Unknown | --NR-- |
|
5
| 'Hakuyo Nishiki' | Medium | Med-Green | Streaked | White | Sport | August to September | Unknown | --NR-- |
|
6
| 'Haru Kaori' | Medium | Dark-Green | | - | Sport | August to September | Unknown | --NR-- |
|
7
| 'Harushoku' | Medium | Dark-Green | | - | Sport | August to September | Unknown | --NR-- |
|
8
| 'Harvest Dawn' | Small | Dark-Green | | - | Hybrid | August to September | Summers, Alex & Ruh, Peter | .1997 |
|
9
| 'Heather' | Large | Dark-Green | | - | Unknown | August to September | Schwarz, Jim | .2015 |
|
10
| 'Heather Hill' | Small | Dark-Green | Marginal | White | Sport | August to September | Solberg, Robert | .2019 |
|
11
| 'Heaven on Earth' | Medium | Light-Green | | - | Unknown | August to September | Asch, Stuart | .2009 |
|
12
| 'High Diver' | Medium | Dark-Green | Marginal | Yellow | Unknown | August to September | Van Ostrand, John | .2005 |
|
13
| 'High Radiation' | Medium | Med-Green | | - | Unknown | August to September | Lydell, Ransom & Walek, Kevin & The American Hosta Society | .2009 |
|
14
| 'Hikosan' | Medium | Dark-Green | Medial | Yellow | Sport | August to September | Kumagae, Toshikuni | --NR-- |
|
15
| 'Hime Urajiro Hyaga' | Miniature | Med-Green | | - | Sport | August to September | Unknown | --NR-- |
|
16
| 'Hirao Monument' | Medium | Light-Green | | - | Unknown | August to September | Hirao, Shuichi & Ruh, Peter | .2001 |
|
17
| 'Holar Black Swan' | Large | Light-Green | | - | Hybrid | August to September | Van Keer, Ronny | --NR-- |
|
18
| 'Honey Hill Blue Blood' | Large | Blue/Green | | - | Unknown | August to September | Erb, Marsha Axmear | .2003 |
|
19
| 'Honey Hill Bubble Up' | Large | Dark-Green | | - | Unknown | August to September | Erb, Marsha Axmear | .2003 |
|
20
| 'Honey Hill Piece o' Pie' | Large | Blue/Green | | - | Unknown | August to September | Erb, Marsha Axmear | .2003 |
|
21
| 'Honeysong Ginko' | Medium | Med-Green | | - | Sport | August to September | Summers, Alex | --NR-- |
|
22
| 'Hula Skirt' | Medium | Yellow | | - | Sport | August to September | Zilis, Mark & Schwarz, Jim | .2015 |
|
23
| 'Hyugabotan' | Medium | Med-Green | | - | Unknown | August to September | Unknown | --NR-- |
|