Best Regional Plants
| Plant Name | Genus | Award | Trial | Region | Year | Trial Cold Hardiness | Trial Heat Zone |
|---|---|---|---|---|---|---|---|
| Diamond Frost® Euphorbia hybrid | Euphorbia | Silver Medal | University of Illinois-Champaign County Master Gardeners | Midwest | 2007 | 5b | 6 |
| Diamond Frost® Euphorbia hybrid | Euphorbia | Silver Medal | University of Illinois-Champaign County Master Gardeners | Midwest | 2007 | 5b | 6 |
| Diamond Frost® Euphorbia hybrid | Euphorbia | Silver Medal | University of Illinois-Champaign County Master Gardeners | Midwest | 2007 | 5b | 6 |
| Diamond Frost® Euphorbia hybrid | Euphorbia | Silver Medal | University of Illinois-Champaign County Master Gardeners | Midwest | 2007 | 5b | 6 |
| Diamond Frost® Euphorbia hybrid | Euphorbia | Gold Medal | University of Illinois-Champaign County Master Gardeners | Midwest | 2006 | 5b | 6 |
| Diamond Frost® Euphorbia hybrid | Euphorbia | Gold Medal | University of Illinois-Champaign County Master Gardeners | Midwest | 2006 | 5b | 6 |
| Diamond Frost® Euphorbia hybrid | Euphorbia | Gold Medal | University of Illinois-Champaign County Master Gardeners | Midwest | 2006 | 5b | 6 |
| Diamond Frost® Euphorbia hybrid | Euphorbia | Gold Medal | University of Illinois-Champaign County Master Gardeners | Midwest | 2006 | 5b | 6 |
| Diamond Frost® Euphorbia hybrid | Euphorbia | Top Performer | Michigan State University | Midwest | 2006 | 5b | 4 |
| Diamond Frost® Euphorbia hybrid | Euphorbia | Top Performer | Michigan State University | Midwest | 2006 | 5b | 4 |
| Diamond Frost® Euphorbia hybrid | Euphorbia | Top Performer | Michigan State University | Midwest | 2006 | 5b | 4 |
| Diamond Frost® Euphorbia hybrid | Euphorbia | Top Performer | Michigan State University | Midwest | 2006 | 5b | 4 |
| Diamond Frost® Euphorbia hybrid | Euphorbia | Top Performer | University of Illinois-Champaign County Master Gardeners | Midwest | 2005 | 5b | 6 |
| Diamond Frost® Euphorbia hybrid | Euphorbia | Top Performer | University of Illinois-Champaign County Master Gardeners | Midwest | 2005 | 5b | 6 |
| Diamond Frost® Euphorbia hybrid | Euphorbia | Top Performer | University of Illinois-Champaign County Master Gardeners | Midwest | 2005 | 5b | 6 |
| Diamond Frost® Euphorbia hybrid | Euphorbia | Top Performer | University of Illinois-Champaign County Master Gardeners | Midwest | 2005 | 5b | 6 |
| Diamond Mountain® Euphorbia hybrid | Euphorbia | Perfect Score All Season | University of Minnesota - Morris | Midwest | 2018 | 4 | |
| Diamond Mountain® Euphorbia hybrid | Euphorbia | Top Performer | Michigan State University | Midwest | 2018 | 5b | 4 |
| Diamond Mountain® Euphorbia hybrid | Euphorbia | Top Performer | University of Wisconsin | Midwest | 2018 |
5a 5b |
4 5 |
| Diamond Mountain® Euphorbia hybrid | Euphorbia | Top Performer | South Dakota State - McCrory Gardens | Midwest | 2018 |
4a 4b |
