Best Regional Plants
| Plant Name | Genus | Award | Trial | Region | Year | Trial Cold Hardiness | Trial Heat Zone |
|---|---|---|---|---|---|---|---|
| Diamond Frost® Euphorbia hybrid | Euphorbia | Top Performer | University of Minnesota - Morris | Midwest | 2011 | 4 | |
| Diamond Frost® Euphorbia hybrid | Euphorbia | Top Performer | University of Minnesota - Morris | Midwest | 2011 | 4 | |
| Diamond Frost® Euphorbia hybrid | Euphorbia | Top Performer | Michigan State University | Midwest | 2011 | 5b | 4 |
| Diamond Frost® Euphorbia hybrid | Euphorbia | Top Performer | Michigan State University | Midwest | 2011 | 5b | 4 |
| Diamond Frost® Euphorbia hybrid | Euphorbia | Top Performer | University of Wisconsin | Midwest | 2011 |
5a 5b |
4 5 |
| Diamond Frost® Euphorbia hybrid | Euphorbia | Top Performer | University of Wisconsin | Midwest | 2011 |
5a 5b |
4 5 |
| Diamond Frost® Euphorbia hybrid | Euphorbia | Top Performer | Iowa State - Reiman Gardens | Midwest | 2011 |
5a 5b |
|
| Diamond Frost® Euphorbia hybrid | Euphorbia | Top Performer | Iowa State - Reiman Gardens | Midwest | 2011 |
5a 5b |
|
| Diamond Frost® Euphorbia hybrid | Euphorbia | Top Performer | University of Wisconsin | Midwest | 2010 |
5a 5b |
4 5 |
| Diamond Frost® Euphorbia hybrid | Euphorbia | Top Performer | University of Wisconsin | Midwest | 2010 |
5a 5b |
4 5 |
| Diamond Frost® Euphorbia hybrid | Euphorbia | Top Performer | University of Wisconsin | Midwest | 2010 |
5a 5b |
4 5 |
| Diamond Frost® Euphorbia hybrid | Euphorbia | Top Performer | Ohio State University Chadwick Arboretum - Springfield | Midwest | 2009 | 5b | 5 |
| Diamond Frost® Euphorbia hybrid | Euphorbia | Top Performer | Ohio State University Chadwick Arboretum - Springfield | Midwest | 2009 | 5b | 5 |
| Diamond Frost® Euphorbia hybrid | Euphorbia | Top Performer | Ohio State University Chadwick Arboretum - Springfield | Midwest | 2009 | 5b | 5 |
| Diamond Frost® Euphorbia hybrid | Euphorbia | Top Performer summer | Michigan State University | Midwest | 2009 | 5b | 4 |
| Diamond Frost® Euphorbia hybrid | Euphorbia | Top Performer summer | Michigan State University | Midwest | 2009 | 5b | 4 |
| Diamond Frost® Euphorbia hybrid | Euphorbia | Top Performer summer | Michigan State University | Midwest | 2009 | 5b | 4 |
| Diamond Frost® Euphorbia hybrid | Euphorbia | Top Performer - Late Summer | Michigan State University | Midwest | 2009 | 5b | 4 |
| Diamond Frost® Euphorbia hybrid | Euphorbia | Top Performer - Late Summer | Michigan State University | Midwest | 2009 | 5b | 4 |
| Diamond Frost® Euphorbia hybrid | Euphorbia | Top Performer - Late Summer | Michigan State University | Midwest | 2009 | 5b | 4 |
