| No. | Cultivar | Plant Size | Leaf Color | Variegation | Var Color | Origin | Flower Color | Season | Source | Registered |
|
1
| 'Blue Island' | Unknown | Blue/Green | | | Unknown | Unknown | Unknown | Benedict, Dr Ralph (Herb) | --NR-- |
|
2
| 'Chicago Frances Williams' | | - | | | Duplicate | - | | Duplicate Name | |
|
3
| 'Chi-Town Classic' | Small | Med-Green | Marginal | White | Hybrid | Light-Purple | July | Zilis, Mark | .2009 |
|
4
| 'DuPage Delight' | Large | Blue/Green | Medial | Yellow | Sport | Pure-White | June | Zilis, Mark | .1990 |
|
5
| 'Forest Park' | Small | Med-Green | Marginal | Yellow | Sport | Near-White | July | Van den Top, Jan | --NR-- |
|
6
| 'Grand Calumet River' | Giant | Unknown | | | Unknown | Unknown | Unknown | Balitewicz, Bob | --NR-- |
|
7
| 'Grant Park' | Medium | Med-Green | | | TC Sport | Light-Purple | July to August | Zilis, Mark | .2006 |
|
8
| 'Illini' | Unknown | Unknown | | | Unknown | Unknown | Unknown | Unknown | --NR-- |
|
9
| 'Itasca' | Medium | Med-Green | Streaked | Yellow | Sport | Pale-Lavender | July to August | Johnson, Arthur H. | .1974 |
|
10
| 'Kaskaskia' | Large | Med-Green | | | Unknown | Unknown | Unknown | Wade, Van | --NR-- |
|
11
| 'Lake Michigan' | Medium | Med-Green | | | Hybrid | Pale-Lavender | September to October | Lydell, Ransom | .2001 |
|
12
| 'Marquette Park' | Medium | Med-Green | Marginal | Creamy White | Sport | Light-Purple | July to August | Zilis, Mark | .2003 |
|
13
| 'May T. Watts' | Large | Yellow | | | TC Sport | Near-White | June to July | Zilis, Mark | .1985 |
|
14
| 'Mount Carmel' | Large | Med-Green | | | Unknown | Light-Purple | July | Wilkins, Dr Jim | --NR-- |
|
15
| 'Peoria Knickers' | Unknown | Unknown | | | Unknown | Unknown | Unknown | Unknown | --NR-- |
|
16
| 'Playin' Peoria' | Miniature | Blue/Green | | | TC Sport | Near-White | July to August | Mortko, Rob & Ankney, Barry | .2018 |
|
17
| 'Russell Square' | Medium | Blue/Green | | | Unknown | Unknown | Unknown | Crockett, Clyde | --NR-- |
|
18
| 'Spring Grove' | Giant | Med-Green | | | Unknown | Med-Lavender | July to August | Mack, Carl & Ruh, Peter & Ruh, Jean | .2002 |
|
19
| 'Sweet Home Chicago' | Medium | Yellow | Marginal | Blue-Green | TC Sport | Pale-Lavender | July | Ruh, Peter | .2002 |
|
20
| 'Turner Junction' | Large | Blue/Green | | | TC Sport | Near-White | June to July | Zilis, Mark | .2003 |
|
21
| 'Wheaton Blue' | Large | Blue/Green | | | Sport | Pale-Lavender | July to August | Zilis, Mark | .1999 |
|
22
| 'Wheaton Thunder' | Large | Blue/Green | Marginal | White | Sport | Pale-Lavender | July to August | Goodenough, Rick | --NR-- |
|
23
| 'Winfield Blue' | Medium | Blue/Green | | | Unknown | Pale-Lavender | July to August | Zilis, Mark | .1999 |
|
24
| 'Winfield Gold' | Medium | Yellow | | | TC Sport | Pale-Lavender | July to August | Zilis, Mark | .2002 |
|
25
| 'Winfield Mist' | Medium | Blue/Green | Medial | Speckles | TC Sport | Pale-Lavender | July to August | Zilis, Mark | .2003 |
|
26
| 'Winfield White' | Medium | Blue/Green | | | Unknown | Unknown | Unknown | Unknown | --NR-- |
|