Best Regional Plants
| Plant Name | Genus | Award | Trial | Region | Year | Trial Cold Hardiness | Trial Heat Zone |
|---|---|---|---|---|---|---|---|
| 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 | Best of the Zoo | Cincinnati Zoo and Botanical Garden | Midwest | 2007 | 6a | 6 |
| Diamond Frost® Euphorbia hybrid | Euphorbia | Best of the Zoo | Cincinnati Zoo and Botanical Garden | Midwest | 2007 | 6a | 6 |
| Diamond Frost® Euphorbia hybrid | Euphorbia | Best of the Zoo | Cincinnati Zoo and Botanical Garden | Midwest | 2007 | 6a | 6 |
| Diamond Frost® Euphorbia hybrid | Euphorbia | Best of the Zoo | Cincinnati Zoo and Botanical Garden | Midwest | 2007 | 6a | 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 | 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 | Best Annuals at the Zoo | Cincinnati Zoo and Botanical Garden | Midwest | 2006 | 6a | 6 |
