Best Regional Plants
| Plant Name | Genus | Award | Trial |
Region |
Year | Trial Cold Hardiness | Trial Heat Zone |
|---|---|---|---|---|---|---|---|
| Surefire® Red II Begonia benariensis | Begonia | Top Performer | Oklahoma State University Botanical Gardens | Southwest | 2022 | 6b | 8 |
| Flambe® Yellow Strawflower Chrysocephalum apiculatum | Chrysocephalum | Arboretum Approved | Dallas Arboretum | Southwest | 2006 | 8a | 9 |
| Big Leaf Creeping Wire Vine Muehlenbeckia complexa | Muehlenbeckia | Perfect Score | Oklahoma State University Botanical Gardens | Southwest | 2022 | 6b | 8 |
| Diamond Frost® Euphorbia | Euphorbia | 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 |
| GoldDust® Mecardonia | Mecardonia | Top Performer | Oklahoma State University Botanical Gardens | Southwest | 2010 | 6b | 8 |
| Butterfly Deep Pink Pentas lanceolata | Pentas | Arboretum Approved | Dallas Arboretum | Southwest | 2005 | 8a | 9 |
| Supertunia Vista® Cool Jazz® Petunia | Petunia | Top Performer | Oklahoma State University Botanical Gardens | Southwest | 2025 | 6b | 8 |
| Snow Princess® Sweet Alyssum Lobularia | Lobularia | Top Performer | Oklahoma State University Botanical Gardens | Southwest | 2009 | 6b | 8 |
| Summer Wave® Trailing Large Blue Wishbone Flower Torenia | Torenia | Top Pick | Dallas Arboretum | Southwest | 2005 | 8a | 9 |
| Blue My Mind® XL Dwarf Morning Glory Evolvulus | Evolvulus | Perfect Score | Oklahoma State University Botanical Gardens | Southwest | 2021 | 6b | 8 |
| White Chiffon® Rose of Sharon Hibiscus syriacus | Hibiscus | Top Pick | Dallas Arboretum | Southwest | 2005 | 8a | 9 |
| Artist® Blue Flossflower Ageratum | Ageratum | Rising Star | Dallas Arboretum | Southwest | 2005 | 8a | 9 |
| Small Leaf Creeping Wire Vine Muehlenbeckia axillaris | Muehlenbeckia | Arboretum Approved | Dallas Arboretum | Southwest | 2006 | 8a | 9 |
| Señorita Rosalita® Spider Flower Cleome | Cleome | Top Performer | Oklahoma State University Botanical Gardens | Southwest | 2008 | 6b | 8 |
| Diamond Frost® Euphorbia | Euphorbia | Top Pick | Dallas Arboretum | Southwest | 2005 | 8a | 9 |
| 'Sweet Caroline Light Green' Sweet Potato Vine Ipomoea batatas | Ipomoea | Arboretum Approved | Dallas Arboretum | Southwest | 2003 | 8a | 9 |
| Diamond Frost® Euphorbia | Euphorbia | Top Performer | Oklahoma State University Botanical Gardens | Southwest | 2012 | 6b | 8 |
| Supertunia Mini Vista® Midnight Petunia | Petunia | Top Performer | Oklahoma State University Botanical Gardens | Southwest | 2022 | 6b | 8 |
| Supertunia Vista® Silverberry Petunia | Petunia | Top Performer | Oklahoma State University Botanical Gardens | Southwest | 2008 | 6b | 8 |
