Best Regional Plants
| Plant Name | Genus | Award | Trial | Region | Year | Trial Cold Hardiness | Trial Heat Zone |
|---|---|---|---|---|---|---|---|
| Diamond Mountain® Euphorbia hybrid | Euphorbia | Top Performer | University of Wisconsin | Midwest | 2018 |
5a 5b |
4 5 |
| Diamond Mountain® Euphorbia hybrid | Euphorbia | Top Performer | Michigan State University | Midwest | 2018 | 5b | 4 |
| Diamond Mountain® Euphorbia hybrid | Euphorbia | Perfect Score All Season | University of Minnesota - Morris | Midwest | 2018 | 4 | |
| Diamond Mountain® Euphorbia hybrid | Euphorbia | Top Performer | Colorado State University | Mountain | 2018 | 5b | 5 |
| Diamond Mountain® Euphorbia hybrid | Euphorbia | Zoo's Best | Cincinnati Zoo and Botanical Garden | Northeast | 2018 | 6a | 6 |
| Diamond Mountain® Euphorbia hybrid | Euphorbia | Top Performer | Penn State University | Northeast | 2018 | 6a |
5 6 |
| Diamond Mountain® Euphorbia hybrid | Euphorbia | Top Performer | Ohio State University Chadwick Arboretum - Springfield | Northeast | 2018 | 5b | 5 |
| Diamond Mountain® Euphorbia hybrid | Euphorbia | Top Flowering Annuals for Warm Weather | Mississippi State University - Poplarville | Southeast | 2018 | 8b | |
| Diamond Mountain® Euphorbia hybrid | Euphorbia | Top Performer | University of Georgia | Southeast | 2018 | 7b | 8 |
| Diamond Mountain® Euphorbia hybrid | Euphorbia | Top Performer | Mississippi State University - Crystal Springs | Southeast | 2018 | 7b | 9 |
| Diamond Mountain® Euphorbia hybrid | Euphorbia | Top 10 | North Carolina State, JC Raulston Arboretum | Southeast | 2018 | 7b | 3 |
| Diamond Mountain® Euphorbia hybrid | Euphorbia | Leader of the Pack - All Season | North Carolina State, JC Raulston Arboretum | Southeast | 2018 | 7b | 3 |
| Diamond Mountain® Euphorbia hybrid | Euphorbia | Leader of the Pack - Early Season | North Carolina State, JC Raulston Arboretum | Southeast | 2018 | 7b | 3 |
| Diamond Mountain® Euphorbia hybrid | Euphorbia | Leader of the Pack - Late Season | North Carolina State, JC Raulston Arboretum | Southeast | 2018 | 7b | 3 |
| Diamond Mountain® Euphorbia hybrid | Euphorbia | Highlight Plant | Mississippi State University - Poplarville | Southeast | 2018 | 8b | |
| Diamond Mountain® Euphorbia hybrid | Euphorbia | Top 10 - Flowering Plants | Mississippi State University - Crystal Springs | Southeast | 2018 | 7b | 9 |
| Diamond Mountain® Euphorbia hybrid | Euphorbia | Top Performer | Oklahoma State University Botanical Gardens | Southwest | 2018 | 6b | 8 |
| Diamond Mountain® Euphorbia hybrid | Euphorbia | Top 10 | University of Minnesota - Grand Rapids | Midwest | 2017 |
3a 3b |
3 |
| Diamond Snow® Euphorbia hybrid | Euphorbia | Top Performer | Cincinnati Zoo and Botanical Garden | Northeast | 2023 | 6a | 6 |
| Diamond Snow® Euphorbia hybrid | Euphorbia | Flameproof | Dallas Arboretum | Southwest | 2022 | 8a | 9 |
