Best Regional Plants
| Plant Name | Genus | Award | Trial |
Region |
Year | Trial Cold Hardiness | Trial Heat Zone |
|---|---|---|---|---|---|---|---|
| Diamond Frost® Euphorbia hybrid | Euphorbia | Perfect Score All Season | Oklahoma State University Botanical Gardens | Southwest | 2018 | 6b | 8 |
| Supertunia Mini Vista® Yellow Petunia hybrid | Petunia | Perfect Score | Oklahoma State University Botanical Gardens | Southwest | 2023 | 6b | 8 |
| Graceful Grasses® Purple Fountain Grass Pennisetum setaceum 'Rubrum' | Pennisetum | Top Performer | Oklahoma State University Botanical Gardens | Southwest | 2010 | 6b | 8 |
| Laguna® Royale Blue Pearl Lobelia erinus | Lobelia | Top Performer | Oklahoma State University Botanical Gardens | Southwest | 2025 | 6b | 8 |
| GoldDust® Mecardonia hybrid | Mecardonia | Top Performer | Oklahoma State University Botanical Gardens | Southwest | 2010 | 6b | 8 |
| ColorBlaze® Royale Pineapple Brandy™ Coleus scutellarioides | Coleus | Perfect Score | Oklahoma State University Botanical Gardens | Southwest | 2025 | 6b | 8 |
| Big Leaf Creeping Wire Vine Muehlenbeckia complexa | Muehlenbeckia | Perfect Score | Oklahoma State University Botanical Gardens | Southwest | 2022 | 6b | 8 |
| ColorBlaze® Mini Me™ Watermelon Coleus scutellarioides | Coleus | Perfect Score | Oklahoma State University Botanical Gardens | Southwest | 2022 | 6b | 8 |
| Supertunia Mini Vista® Yellow Petunia hybrid | Petunia | Perfect Score | Oklahoma State University Botanical Gardens | Southwest | 2024 | 6b | 8 |
| Blue My Mind® Dwarf Morning Glory Evolvulus hybrid | Evolvulus | Top Performer | Oklahoma State University Botanical Gardens | Southwest | 2012 | 6b | 8 |
| Artist® Blue Flossflower Ageratum hybrid | Ageratum | Arboretum Approved | Dallas Arboretum | Southwest | 2004 | 8a | 9 |
| Graceful Grasses® Vertigo® Purple Fountain Grass Pennisetum purpureum | Pennisetum | Top Performer | Oklahoma State University Botanical Gardens | Southwest | 2010 | 6b | 8 |
| ColorBlaze® Chocolate Drop Coleus scutellarioides | Coleus | Perfect Score | Oklahoma State University Botanical Gardens | Southwest | 2023 | 6b | 8 |
| Luscious® Goldengate™ Lantana camara | Lantana | Perfect Score all Season | Oklahoma State University Botanical Gardens | Southwest | 2019 | 6b | 8 |
| Graceful Grasses® Vertigo® Purple Fountain Grass Pennisetum purpureum | Pennisetum | Top Performer | Oklahoma State University Botanical Gardens | Southwest | 2010 | 6b | 8 |
| Supertunia Mini Vista® Hot Pink Petunia hybrid | Petunia | Top Performer | Oklahoma State University Botanical Gardens | Southwest | 2022 | 6b | 8 |
| Diamond Frost® Euphorbia hybrid | Euphorbia | Field Day Top Pick | Dallas Arboretum | Southwest | 2006 | 8a | 9 |
| Supertunia Mini Vista® Hot Pink Petunia hybrid | Petunia | Perfect Score | Oklahoma State University Botanical Gardens | Southwest | 2021 | 6b | 8 |
| Campfire® Marshmallow™ Bidens hybrid | Bidens | Top Performer | Oklahoma State University Botanical Gardens | Southwest | 2025 | 6b | 8 |
| Goldilocks Rocks® Bidens ferulifolia | Bidens | Top Performer | Oklahoma State University Botanical Gardens | Southwest | 2019 | 6b | 8 |
