Best Regional Plants
| Plant Name | Genus | Award | Trial | Region | Year | Trial Cold Hardiness | Trial Heat Zone |
|---|---|---|---|---|---|---|---|
| Diamond Frost® Euphorbia hybrid | Euphorbia | Top Performer | Oklahoma State University Botanical Gardens | Southwest | 2010 | 6b | 8 |
| Diamond Frost® Euphorbia hybrid | Euphorbia | Top Performer | Oklahoma State University Botanical Gardens | Southwest | 2010 | 6b | 8 |
| Diamond Frost® Euphorbia hybrid | Euphorbia | Top Performer | Oklahoma State University Botanical Gardens | Southwest | 2010 | 6b | 8 |
| Diamond Frost® Euphorbia hybrid | Euphorbia | Top Performer | Oklahoma State University Botanical Gardens | Southwest | 2010 | 6b | 8 |
| Diamond Frost® Euphorbia hybrid | Euphorbia | Top Performer | University Laval | Canada | 2009 | 4a | |
| Diamond Frost® Euphorbia hybrid | Euphorbia | Top Performer | University Laval | Canada | 2009 | 4a | |
| Diamond Frost® Euphorbia hybrid | Euphorbia | Top Performer | University Laval | Canada | 2009 | 4a | |
| 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 | 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 |
| Diamond Frost® Euphorbia hybrid | Euphorbia | Best-Looking Foliage | University of Delaware | Northeast | 2009 | 7a | 6 |
| Diamond Frost® Euphorbia hybrid | Euphorbia | Best-Looking Foliage | University of Delaware | Northeast | 2009 | 7a | 6 |
| Diamond Frost® Euphorbia hybrid | Euphorbia | Best-Looking Foliage | University of Delaware | Northeast | 2009 | 7a | 6 |
| Diamond Frost® Euphorbia hybrid | Euphorbia | Best-Looking Flowers | University of Delaware | Northeast | 2009 | 7a | 6 |
