Best Regional Plants
| Plant Name | Genus | Award | Trial |
Region |
Year | Trial Cold Hardiness | Trial Heat Zone |
|---|---|---|---|---|---|---|---|
| Diamond Frost® Euphorbia | Euphorbia | Top Performer | Oklahoma State University Botanical Gardens | Southwest | 2010 | 6b | 8 |
| Graceful Grasses® King Tut® Egyptian Papyrus Cyperus papyrus | Cyperus | Top Performer | Oklahoma State University Botanical Gardens | Southwest | 2010 | 6b | 8 |
| Diamond Frost® Euphorbia | Euphorbia | Top Pick | Dallas Arboretum | Southwest | 2005 | 8a | 9 |
| Supertunia Mini Vista® Indigo Petunia | Petunia | Perfect Score all Season | Oklahoma State University Botanical Gardens | Southwest | 2019 | 6b | 8 |
| Catalina® Midnight Blue Wishbone Flower Torenia | Torenia | Flame Proof | Dallas Arboretum | Southwest | 2005 | 8a | 9 |
| Black Pearl Pepper Capsicum | Capsicum | Arboretum Approved | Dallas Arboretum | Southwest | 2005 | 8a | 9 |
| Surefire® Red II Begonia benariensis | Begonia | Top Performer | Oklahoma State University Botanical Gardens | Southwest | 2022 | 6b | 8 |
| Catalina® Midnight Blue Wishbone Flower Torenia | Torenia | Top Pick | Dallas Arboretum | Southwest | 2005 | 8a | 9 |
| Supertunia Mini Vista® Midnight Petunia | Petunia | Top Performer | Oklahoma State University Botanical Gardens | Southwest | 2022 | 6b | 8 |
| Luscious® Citrus Blend™ II Lantana camara | Lantana | Best Overall Performance: Annual | Dallas Arboretum | Southwest | 2018 | 8a | 9 |
| Lavender Chiffon® Hibiscus syriacus | Hibiscus | Top Pick | Dallas Arboretum | Southwest | 2005 | 8a | 9 |
| Beth's Blue® Star Flower Isotoma axillaris | Isotoma | Visitor Favorites | Dallas Arboretum | Southwest | 2009 | 8a | 9 |
| GoldDust® Mecardonia | Mecardonia | Top Performer | Oklahoma State University Botanical Gardens | Southwest | 2012 | 6b | 8 |
| Flambe® Yellow Strawflower Chrysocephalum apiculatum | Chrysocephalum | Arboretum Approved | Dallas Arboretum | Southwest | 2006 | 8a | 9 |
| ColorBlaze® Rediculous® Coleus scutellarioides | Coleus | Perfect Score All Season | Oklahoma State University Botanical Gardens | Southwest | 2018 | 6b | 8 |
| Diamond Snow® Euphorbia | Euphorbia | Perfect Score All Season | Oklahoma State University Botanical Gardens | Southwest | 2020 | 6b | 8 |
| ColorBlaze® Royale Cherry Brandy® Coleus scutellarioides | Coleus | Top Performer | Dallas Arboretum | Southwest | 2022 | 8a | 9 |
| Big Leaf Creeping Wire Vine Muehlenbeckia complexa | Muehlenbeckia | Perfect Score | Oklahoma State University Botanical Gardens | Southwest | 2022 | 6b | 8 |
| Señorita Rosalita® Spider Flower Cleome | Cleome | Rising Star | Dallas Arboretum | Southwest | 2008 | 8a | 9 |
| Summer Wave® Trailing Large Blue Wishbone Flower Torenia | Torenia | Flame Proof | Dallas Arboretum | Southwest | 2005 | 8a | 9 |
