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 | 2008 | 6b | 8 |
| Summer Wave® Trailing Large Violet Wishbone Flower Torenia hybrid | Torenia | Flame Proof | Dallas Arboretum | Southwest | 2005 | 8a | 9 |
| Señorita Rosalita® Spider Flower Cleome hybrid | Cleome | Rising Star | Dallas Arboretum | Southwest | 2008 | 8a | 9 |
| Graceful Grasses® Fiber Optic Grass Isolepis (Scirpus) cernua | Isolepis (Scirpus) | Top Performer | Oklahoma State University Botanical Gardens | Southwest | 2010 | 6b | 8 |
| Graceful Grasses® Vertigo® Purple Fountain Grass Pennisetum purpureum | Pennisetum | Top Performer | Oklahoma State University Botanical Gardens | Southwest | 2010 | 6b | 8 |
| Flambe® Yellow Strawflower Chrysocephalum apiculatum | Chrysocephalum | Arboretum Approved | Dallas Arboretum | Southwest | 2006 | 8a | 9 |
| Black Pearl Pepper Capsicum | Capsicum | Flame Proof | Dallas Arboretum | Southwest | 2005 | 8a | 9 |
| Illusion® Midnight Lace Sweet Potato Vine Ipomoea batatas | Ipomoea | Top Performer | Oklahoma State University Botanical Gardens | Southwest | 2010 | 6b | 8 |
| Dragon Wing® Pink Angelwing Begonia Begonia hybrid | Begonia | Arboretum Approved | Dallas Arboretum | Southwest | 2005 | 8a | 9 |
| 'Flamenco Samba' Cuphea llavea | Cuphea | Rising Star | Dallas Arboretum | Southwest | 2007 | 8a | 9 |
| Sweet Caroline Sweetheart Mahogany™ Ornamental Sweet Potato Vine Ipomoea hybrid | Ipomoea | Perfect Score | Oklahoma State University Botanical Gardens | Southwest | 2023 | 6b | 8 |
| Diamond Frost® Euphorbia hybrid | Euphorbia | Top Performer | Oklahoma State University Botanical Gardens | Southwest | 2012 | 6b | 8 |
| Coffee Cups Elephant's Ear Colocasia esculenta | Colocasia | Top Performer | Oklahoma State University Botanical Gardens | Southwest | 2008 | 6b | 8 |
| Goldilocks Rocks® Bidens ferulifolia | Bidens | Top Performer | Oklahoma State University Botanical Gardens | Southwest | 2019 | 6b | 8 |
| Graceful Grasses® Ogon Golden Variegated Sweet Flag Acorus gramineus | Acorus | Arboretum Approved | Dallas Arboretum | Southwest | 2006 | 8a | 9 |
| Truffula™ Pink Globe Amaranth Gomphrena pulchella | Gomphrena | Perfect Score | Oklahoma State University Botanical Gardens | Southwest | 2021 | 6b | 8 |
| Daredevil® Rosita Zonal Geranium Pelargonium zonale | Pelargonium | Top Performer | Oklahoma State University Botanical Gardens | Southwest | 2010 | 6b | 8 |
| Graceful Grasses® Vertigo® Purple Fountain Grass Pennisetum purpureum | Pennisetum | Top Performer | Oklahoma State University Botanical Gardens | Southwest | 2010 | 6b | 8 |
| Graceful Grasses® Ogon Golden Variegated Sweet Flag Acorus gramineus | Acorus | Flame Proof | Dallas Arboretum | Southwest | 2006 | 8a | 9 |
| Supertunia® Persimmon Petunia hybrid | Petunia | Top Performer | Oklahoma State University Botanical Gardens | Southwest | 2022 | 6b | 8 |
