Best Regional Plants
| Plant Name | Genus | Award | Trial | Region | Year | Trial Cold Hardiness | Trial Heat Zone |
|---|---|---|---|---|---|---|---|
| Diamond Frost® Euphorbia hybrid | Euphorbia | Top Performer | University of Wisconsin | Midwest | 2010 |
5a 5b |
4 5 |
| Diamond Frost® Euphorbia hybrid | Euphorbia | Top Performer | University of Wisconsin | Midwest | 2010 |
5a 5b |
4 5 |
| Diamond Frost® Euphorbia hybrid | Euphorbia | Top Performer | University of Wisconsin | Midwest | 2010 |
5a 5b |
4 5 |
| Diamond Frost® Euphorbia hybrid | Euphorbia | Very Good | Massachusetts Horticultural Society at Elm Bank | Northeast | 2010 | 6a | 4 |
| Diamond Frost® Euphorbia hybrid | Euphorbia | Very Good | Massachusetts Horticultural Society at Elm Bank | Northeast | 2010 | 6a | 4 |
| Diamond Frost® Euphorbia hybrid | Euphorbia | Very Good | Massachusetts Horticultural Society at Elm Bank | Northeast | 2010 | 6a | 4 |
| Diamond Frost® Euphorbia hybrid | Euphorbia | Excellent | Massachusetts Horticultural Society at Elm Bank | Northeast | 2010 | 6a | 4 |
| Diamond Frost® Euphorbia hybrid | Euphorbia | Excellent | Massachusetts Horticultural Society at Elm Bank | Northeast | 2010 | 6a | 4 |
| Diamond Frost® Euphorbia hybrid | Euphorbia | Excellent | Massachusetts Horticultural Society at Elm Bank | Northeast | 2010 | 6a | 4 |
| Diamond Frost® Euphorbia hybrid | Euphorbia | Plant of Merit | University of Georgia | Southeast | 2010 | 7b | 8 |
| Diamond Frost® Euphorbia hybrid | Euphorbia | Plant of Merit | University of Georgia | Southeast | 2010 | 7b | 8 |
| Diamond Frost® Euphorbia hybrid | Euphorbia | Plant of Merit | University of Georgia | Southeast | 2010 | 7b | 8 |
| Diamond Frost® Euphorbia hybrid | Euphorbia | Good Performer | Mississippi State University - Crystal Springs | Southeast | 2010 | 7b | 9 |
| Diamond Frost® Euphorbia hybrid | Euphorbia | Good Performer | Mississippi State University - Crystal Springs | Southeast | 2010 | 7b | 9 |
| Diamond Frost® Euphorbia hybrid | Euphorbia | Good Performer | Mississippi State University - Crystal Springs | Southeast | 2010 | 7b | 9 |
| Diamond Frost® Euphorbia hybrid | Euphorbia | Consumer Choice | University of Florida - Fort Lauderdale | Southeast | 2010 | 10a | 11 |
| Diamond Frost® Euphorbia hybrid | Euphorbia | Consumer Choice | University of Florida - Fort Lauderdale | Southeast | 2010 | 10a | 11 |
| Diamond Frost® Euphorbia hybrid | Euphorbia | Consumer Choice | University of Florida - Fort Lauderdale | Southeast | 2010 | 10a | 11 |
| 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 |
