No. | Cultivar | Plant Size | Leaf Color | Variegation | Var Color | Origin | Flower Color | Season | Source | Registered |
1
| 'American Monster' | Giant | Blue/Green | | | Hybrid | Near-White | June to July | Wade, Van | --NR-- |
2
| 'Backyard Monster' | Large | Med-Green | Marginal | White | Unknown | Near-White | June | Schwarz, Jim | .2007 |
3
| 'Cookie Monster' | Large | Yellow | | | Hybrid | Unknown | Unknown | Kuk, Bob | --NR-- |
4
| 'Giantland Blue Monster' | Giant | Blue/Green | | | Unknown | Unknown | Unknown | Miller, Jeff | --NR-- |
5
| 'Green-eyed Monster' | Giant | Dark-Green | | | Unknown | Near-White | June to July | Simpers, Lucille | --NR-- |
6
| 'Hollywood Loch Ness Monster' | Medium | Blue/Green | | | Unknown | Unknown | Unknown | Krueger, Michael & Krueger, Fran | --NR-- |
7
| 'Lochness Monster' | Large | Yellow | | | Sport | Near-White | June | Brill, Kirk | --NR-- |
8
| 'Mommy's Little Monster' | Medium | Blue/Green | | | Hybrid | Unknown | Unknown | Stadden, Josh | --NR-- |
9
| 'Monster Babe' | Giant | Blue/Green | | | Hybrid | Pale-Lavender | Unknown | Minks, Eldren & Malloy, Alex | .2000 |
10
| 'Monster Ears' | Medium | Med-Green | | | Sport | Near-White | July to August | Heemskerk, Gerardus | .2014 |
11
| 'Moon Monster' | Large | Blue/Green | | | Unknown | Unknown | June to July | Lachman, Wm & Lachman, Eleanor & Walek, Kevin & The American Hosta Society | .2009 |
12
| 'Sea Blue Monster' | Large | Blue/Green | | | Hybrid | Near-White | June to July | Seaver, Mildred | .2009 |
13
| 'Sea Monster' | Large | Med-Green | | | Hybrid | Near-White | June to July | Seaver, Mildred & Walek, Kevin & The American Hosta Society | .1978 .2010 |
14
| 'Simpers Green Eyed Monster' | | - | | | Duplicate | - | | Duplicate Name | |
15
| 'Soules' Monster' | Giant | Blue/Green | | | Unknown | Unknown | Unknown | Soules, Marjorie | --NR-- |
16
| 'Swamp Monster' | Large | Dark-Green | | | Hybrid | Near-White | June | Lachman, Wm & Lachman, Eleanor | .1991 |
17
| 'Wood Monster' | Giant | Med-Green | | | Unknown | Unknown | July to August | Woods, Doyle & Schulz, Ed | .2011 |
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