Best Regional Plants
| Plant Name | Genus | Award | Trial | Region | Year | Trial Cold Hardiness | Trial Heat Zone |
|---|---|---|---|---|---|---|---|
| White Knight® Sweet Alyssum Lobularia hybrid | Lobularia | Top Performer | Michigan State University | Midwest | 2013 | 5b | 4 |
| White Knight® Sweet Alyssum Lobularia hybrid | Lobularia | Leader of the Pack - Summer | North Carolina State, JC Raulston Arboretum | Southeast | 2013 | 7b | 3 |
| White Knight® Sweet Alyssum Lobularia hybrid | Lobularia | Leader of the Pack - Early Season | North Carolina State, JC Raulston Arboretum | Southeast | 2013 | 7b | 3 |
| White Knight® Sweet Alyssum Lobularia hybrid | Lobularia | Leader of the Pack - Late Season | North Carolina State, JC Raulston Arboretum | Southeast | 2013 | 7b | 3 |
| Wine & Roses® Weigela florida | Weigela | Gardener Selects | Penn State University | Northeast | 2001 | 6a |
5 6 |
| Wine & Roses® Weigela florida | Weigela | Gardener Selects | Penn State University | Northeast | 2001 | 6a |
5 6 |
| Wine & Roses® Weigela florida | Weigela | Gardener Selects | Penn State University | Northeast | 2001 | 6a |
5 6 |
| Wine & Roses® Weigela florida | Weigela | Gardener Selects | Penn State University | Northeast | 2001 | 6a |
5 6 |
| Zinfandel™ Oxalis vulcanicola | Oxalis | Arboretum Approved | Dallas Arboretum | Southwest | 2005 | 8a | 9 |
| Zinfandel™ Oxalis vulcanicola | Oxalis | Arboretum Approved | Dallas Arboretum | Southwest | 2005 | 8a | 9 |
| Zinfandel™ Oxalis vulcanicola | Oxalis | Arboretum Approved | Dallas Arboretum | Southwest | 2005 | 8a | 9 |
| Zinfandel™ Oxalis vulcanicola | Oxalis | Arboretum Approved | Dallas Arboretum | Southwest | 2005 | 8a | 9 |
| Zinfin Doll® Panicle hydrangea Hydrangea paniculata | Hydrangea | Consumer Top Hydrangeas | University of Guelph | Canada | 2020 |
