Best Regional Plants
| Plant Name | Genus | Award | Trial | Region | Year | Trial Cold Hardiness | Trial Heat Zone |
|---|---|---|---|---|---|---|---|
| Diamond Frost® Euphorbia hybrid | Euphorbia | Excellent Rating | Boerner Botanical Garden | Midwest | 2009 | 5b | 4 |
| Diamond Frost® Euphorbia hybrid | Euphorbia | Excellent Rating | Boerner Botanical Garden | Midwest | 2009 | 5b | 4 |
| Diamond Frost® Euphorbia hybrid | Euphorbia | Excellent Rating | Boerner Botanical Garden | Midwest | 2009 | 5b | 4 |
| Diamond Frost® Euphorbia hybrid | Euphorbia | Excellent Rating | Boerner Botanical Garden | Midwest | 2008 | 5b | 4 |
| Diamond Frost® Euphorbia hybrid | Euphorbia | Excellent Rating | Boerner Botanical Garden | Midwest | 2008 | 5b | 4 |
| Diamond Frost® Euphorbia hybrid | Euphorbia | Excellent Rating | Boerner Botanical Garden | Midwest | 2008 | 5b | 4 |
| Diamond Frost® Euphorbia hybrid | Euphorbia | Excellent Rating | Boerner Botanical Garden | Midwest | 2008 | 5b | 4 |
| Diamond Frost® Euphorbia hybrid | Euphorbia | Top Performer | Ohio State University Chadwick Arboretum - Springfield | Midwest | 2008 | 5b | 5 |
| Diamond Frost® Euphorbia hybrid | Euphorbia | Top Performer | Ohio State University Chadwick Arboretum - Springfield | Midwest | 2008 | 5b | 5 |
| Diamond Frost® Euphorbia hybrid | Euphorbia | Top Performer | Ohio State University Chadwick Arboretum - Springfield | Midwest | 2008 | 5b | 5 |
| Diamond Frost® Euphorbia hybrid | Euphorbia | Top Performer | Ohio State University Chadwick Arboretum - Springfield | Midwest | 2008 | 5b | 5 |
| Diamond Frost® Euphorbia hybrid | Euphorbia | Silver Medal | Ohio State University Chadwick Arboretum - Springfield | Midwest | 2008 | 5b | 5 |
| Diamond Frost® Euphorbia hybrid | Euphorbia | Silver Medal | Ohio State University Chadwick Arboretum - Springfield | Midwest | 2008 | 5b | 5 |
| Diamond Frost® Euphorbia hybrid | Euphorbia | Silver Medal | Ohio State University Chadwick Arboretum - Springfield | Midwest | 2008 | 5b | 5 |
| Diamond Frost® Euphorbia hybrid | Euphorbia | Top Performer | Michigan State University | Midwest | 2008 | 5b | 4 |
| Diamond Frost® Euphorbia hybrid | Euphorbia | Top Performer | Michigan State University | Midwest | 2008 | 5b | 4 |
| Diamond Frost® Euphorbia hybrid | Euphorbia | Top Performer | Michigan State University | Midwest | 2008 | 5b | 4 |
| Diamond Frost® Euphorbia hybrid | Euphorbia | Top Performer | Michigan State University | Midwest | 2007 | 5b | 4 |
| Diamond Frost® Euphorbia hybrid | Euphorbia | Top Performer | Michigan State University | Midwest | 2007 | 5b | 4 |
| Diamond Frost® Euphorbia hybrid | Euphorbia | Top Performer | Michigan State University | Midwest | 2007 | 5b | 4 |
