| No. | Cultivar Name | Source | Plant Size | Leaf Color | Variegation | Var Color | Origin | Flower Color | Season | Registered |
|
1
| 'Canadian Blue' | Van Vliet, Arie & Walek, Kevin & The American Hosta Society | Large | Blue/Green | | - | Unknown | Pale-Lavender | July into August | .2009 |
|
2
| 'Captain Adventure' | Heemskerk, Gerardus | Small | Light-Green | Marginal | White | Sport | Pale-Lavender | July | --NR-- |
|
3
| 'Captain's Adventure' | Heemskerk, Gerardus | Medium | Light-Green | Marginal | White | Sport | Pale-Lavender | July into August | .2009 |
|
4
| 'Catherine' | Heemskerk, Gerardus | Medium | Blue/Green | Medial | White | Sport | Med-Lavender | July into August | .2011 |
|
5
| 'Child of the Queen' | Van den Top, Jan | Medium | Blue/Green | Medial | Yellow | Sport | Unknown | - | --NR-- |
|
6
| 'Christmas Candy' | Van Erven, Dirk | Medium | Med-Green | Medial | White | Sport | Pale-Lavender | July | .2002 |
|
7
| 'Christmas Song' | Heemskerk, Gerardus | Medium | Dark-Green | Marginal | White | Unknown | Med-Lavender | - | --NR-- |
|
8
| 'Clattering Water' | Fransen, Marco & Fransen, Joyce | Medium | Blue/Green | | - | Sport | Med-Lavender | - | --NR-- |
|
9
| 'College' | Fransen, Marco | Large | Blue/Green | | - | Unknown | Unknown | - | --NR-- |
|
10
| 'Color Design' | Van den Top, Jan | Medium | Dark-Green | Medial | White | Unknown | Unknown | - | --NR-- |
|
11
| 'Colored Hulk' | Heemskerk, Gerardus | Small | Dark-Green | Medial | White | Sport | Pale-Lavender | July into August | .2011 |
|
12
| 'Colored Lollipop' | Van den Top, Jan | Small | Dark-Green | Streaked | White | Unknown | Unknown | - | --NR-- |
|
13
| 'Colored Muffin' | Van den Top, Jan | Medium | Blue/Green | Streaked | Yellow | Nat-Sport | Deep-Purple | July | --NR-- |
|
14
| 'Colors in Motion' | de Rooij, Piet | Giant | Blue/Green | Streaked | White | Hybrid | Pale-Lavender | June into July | .2014 |
|
15
| 'Crainberry Wine' | de Rooij, Piet | Large | Yellow | Marginal | Yellow | Unknown | Unknown | - | --NR-- |
|
16
| 'Crazy Hazy' | Fransen, Marco & Fransen, Joyce | Medium | Blue/Green | Marginal | Yellow | Sport | Med-Lavender | - | --NR-- |
|
17
| 'Cream Topping' | Heemskerk, Gerardus | Medium | Blue/Green | Medial | White | Sport | Med-Lavender | - | --NR-- |
|
18
| 'Crocodile Socks' | Van den Top, Jan | Medium | Dark-Green | Marginal | Yellow | Sport | Pale-Lavender | June into July | --NR-- |
|
19
| 'Crystal Dixie' | Fransen, Marco | Small | Dark-Green | | - | Sport | Light-Purple | August September October | --NR-- |
|
20
| 'Current Sunrise' | Van den Top, Jan | Medium | Med-Green | Marginal | Yellow | Nat-Sport | Med-Lavender | July | --NR-- |
|