Best Regional Plants
| Plant Name | Genus | Award | Trial | Region | Year | Trial Cold Hardiness | Trial Heat Zone |
|---|---|---|---|---|---|---|---|
| Diamond Frost® Euphorbia hybrid | Euphorbia | Best-Looking Flowers | University of Delaware | Northeast | 2009 | 7a | 6 |
| Diamond Frost® Euphorbia hybrid | Euphorbia | Best-Looking Flowers | University of Delaware | Northeast | 2009 | 7a | 6 |
| Diamond Frost® Euphorbia hybrid | Euphorbia | Best Varieties | Penn State University | Northeast | 2009 | 6a |
5 6 |
| Diamond Frost® Euphorbia hybrid | Euphorbia | Best Varieties | Penn State University | Northeast | 2009 | 6a |
5 6 |
| Diamond Frost® Euphorbia hybrid | Euphorbia | Best Varieties | Penn State University | Northeast | 2009 | 6a |
5 6 |
| Diamond Frost® Euphorbia hybrid | Euphorbia | Top Performer | Ohio State University Chadwick Arboretum - Springfield | Northeast | 2009 | 5b | 5 |
| Diamond Frost® Euphorbia hybrid | Euphorbia | Top Performer | Ohio State University Chadwick Arboretum - Springfield | Northeast | 2009 | 5b | 5 |
| Diamond Frost® Euphorbia hybrid | Euphorbia | Top Performer | Ohio State University Chadwick Arboretum - Springfield | Northeast | 2009 | 5b | 5 |
| Diamond Frost® Euphorbia hybrid | Euphorbia | Top Performer | Mississippi State University - Crystal Springs | Southeast | 2009 | 7b | 9 |
| Diamond Frost® Euphorbia hybrid | Euphorbia | Top Performer | Mississippi State University - Crystal Springs | Southeast | 2009 | 7b | 9 |
| Diamond Frost® Euphorbia hybrid | Euphorbia | Top Performer | Mississippi State University - Crystal Springs | Southeast | 2009 | 7b | 9 |
| Diamond Frost® Euphorbia hybrid | Euphorbia | Leader of the Pack - Early Season | North Carolina State, JC Raulston Arboretum | Southeast | 2009 | 7b | 3 |
| Diamond Frost® Euphorbia hybrid | Euphorbia | Leader of the Pack - Early Season | North Carolina State, JC Raulston Arboretum | Southeast | 2009 | 7b | 3 |
| Diamond Frost® Euphorbia hybrid | Euphorbia | Leader of the Pack - Early Season | North Carolina State, JC Raulston Arboretum | Southeast | 2009 | 7b | 3 |
| Diamond Frost® Euphorbia hybrid | Euphorbia | Leader of the Pack for Summer | North Carolina State, JC Raulston Arboretum | Southeast | 2009 | 7b | 3 |
| Diamond Frost® Euphorbia hybrid | Euphorbia | Leader of the Pack for Summer | North Carolina State, JC Raulston Arboretum | Southeast | 2009 | 7b | 3 |
| Diamond Frost® Euphorbia hybrid | Euphorbia | Leader of the Pack for Summer | North Carolina State, JC Raulston Arboretum | Southeast | 2009 | 7b | 3 |
| Diamond Frost® Euphorbia hybrid | Euphorbia | Leader of the Pack - Late Summer | North Carolina State, JC Raulston Arboretum | Southeast | 2009 | 7b | 3 |
| Diamond Frost® Euphorbia hybrid | Euphorbia | Leader of the Pack - Late Summer | North Carolina State, JC Raulston Arboretum | Southeast | 2009 | 7b | 3 |
| Diamond Frost® Euphorbia hybrid | Euphorbia | Leader of the Pack - Late Summer | North Carolina State, JC Raulston Arboretum | Southeast | 2009 | 7b | 3 |
