| No. | Cultivar Name | Plant Size | Leaf Color | Variegation | Var Color | Origin | Flower Color | Season | Source | Registered |
|
1
| 'Salty Blue' | Medium | Blue/Green | - | - | Hybrid | Pure-White | August | Nyikos, Frank | .2011 |
|
2
| 'Samual Blue' | Large | Blue/Green | - | - | Unknown | Near-White | June into July | Krossa, Gus & Ruh, Peter | .1981 |
|
3
| 'School Mouse' | Small | Blue/Green | Marginal | Yellow | TC Sport | Light-Purple | July | Hansen, Hans & Walters Gardens | --NR-- |
|
4
| 'Sea Blue' | Large | Blue/Green | - | - | Hybrid | Near-White | June into July | Seaver, Mildred | .1978 |
|
5
| 'Sea Blue Electra' | - | - | - | - | Unknown | - | - | Seaver, Mildred | --NR-- |
|
6
| 'Sea Blue Leather' | Giant | Blue/Green | - | - | Unknown | Near-White | June | Seaver, Mildred & Walek, Kevin & The American Hosta Society | .2009 |
|
7
| 'Sea Blue Monster' | Large | Blue/Green | - | - | Hybrid | Near-White | June into July | Seaver, Mildred | .2009 |
|
8
| 'Sea Blue Sapphire' | Large | Blue/Green | - | - | Unknown | - | - | Seaver, Mildred | --NR-- |
|
9
| 'Self Clean Blue' | Medium | Blue/Green | - | - | Unknown | - | - | Wade, Van | --NR-- |
|
10
| 'Simpers Blue Leaf' | Medium | Blue/Green | - | - | Unknown | - | - | Simpers, Lucille | --NR-- |
|
11
| 'Skinny Mouse' | Small | Light-Green | - | - | Sport | Light-Purple | July | Van Eechaute, Danny | --NR-- |
|
12
| 'Sky Blue Waters' | Large | Blue/Green | Marginal | Yellow | Hybrid | Light-Purple | July into August | Elslager, Ed | .2005 |
|
13
| 'Smiling Mouse' | Small | Blue/Green | Marginal | Yellow | Sport | Med-Lavender | July | Van den Top, Jan | --NR-- |
|
14
| 'Snow Mouse' | Small | Blue/Green | Medial | White | Sport | Pale-Lavender | - | Fransen, Marco | --NR-- |
|
15
| 'Solar Mouse' | Miniature | Med-Green | Marginal | Yellow | Sport | Med-Lavender | June into July | Ward, Dr Dick & Ward, Jane | .2013 |
|
16
| 'Something Blue' | Large | Blue/Green | - | - | Hybrid | Pale-Lavender | June into July | Simpers, Lucille & Ruh, Peter | .1991 |
|
17
| 'Song Sung Blues' | Medium | Blue/Green | Marginal | Green | Hybrid | Pale-Lavender | June into July | Elslager, Ed | .2004 |
|
18
| 'Southern Blues' | Medium | Blue/Green | - | - | Hybrid | Pale-Lavender | June into July | McDonell, Harold | .2014 |
|
19
| 'Spiny Mouse' | Miniature | Med-Green | | | Nat-Sport | Light-Purple | July | Van Eechaute, Danny | --NR-- |
|
20
| 'Spooky Mouse Ears' | Miniature | Med-Green | Marginal | White | Sport | - | - | Van den Top, Jan | --NR-- |
|
21
| 'Stone's Blue' | - | - | - | - | Duplicate | - | - | Duplicate Name | --NR-- |
|
22
| 'Streaked Blue Mouse Ears' | Miniature | Blue/Green | Streaked | Yellow | Sport | Light-Purple | July | Unknown | --NR-- |
|
23
| 'Stuck on Blue' | Medium | Blue/Green | | - | Hybrid | Pale-Lavender | August | Dean, Don | .2020 |
|
24
| 'Sugar Blue' | Medium | Blue/Green | | | Unknown | Med-Lavender | | Fransen, Marco & Fransen, Joyce | --NR-- |
|
25
| 'Sum Blue' | Small | Blue/Green | | - | Hybrid | Near-White | June into July | Kwick, Charles | .2019 |
|
26
| 'Sun Mouse' | Small | Yellow | - | - | Sport | Med-Lavender | June into July | Avent, Tony | --NR-- |
|
27
| 'Sunfish Blue' | Giant | Blue/Green | - | - | Unknown | - | July into August | Sauve, Criste | .2004 |
|
28
| 'Surfing Mouse' | Small | Yellow-Gold | | | Nat-Sport | Med-Lavender | June into July | Van den Top, Jan | --NR-- |
|
29
| 'Symphony in Blue' | Medium | Blue/Green | | - | Hybrid | Pale-Lavender | September | Stegeman, Bev & Stegeman, Dave | .2019 |
|