Best Regional Plants
| Plant Name | Genus | Award | Trial |
Region |
Year | Trial Cold Hardiness | Trial Heat Zone |
|---|---|---|---|---|---|---|---|
| 'Sweet Caroline Light Green' Sweet Potato Vine Ipomoea batatas | Ipomoea | Arboretum Approved | Dallas Arboretum | Southwest | 2003 | 8a | 9 |
| Diamond Frost® Euphorbia | Euphorbia | Arboretum Approved | Dallas Arboretum | Southwest | 2004 | 8a | 9 |
| Black Pearl Pepper Capsicum | Capsicum | Field Day Top Pick | Dallas Arboretum | Southwest | 2006 | 8a | 9 |
| ColorBlaze® Mini Me™ Watermelon Coleus scutellarioides | Coleus | 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 | 2024 | 6b | 8 |
| Lavender Chiffon® Hibiscus syriacus | Hibiscus | Top Pick | Dallas Arboretum | Southwest | 2005 | 8a | 9 |
| 'Flamenco Samba' Cuphea llavea | Cuphea | Arboretum Approved | Dallas Arboretum | Southwest | 2006 | 8a | 9 |
| Amazel Basil® Sweet Italian Basil Ocimum basilicum | Ocimum | Top Performer | Oklahoma State University Botanical Gardens | Southwest | 2018 | 6b | 8 |
| Forest™ Pink Globe Amaranthus Gomphrena haageana | Gomphrena | Perfect Score All Season | Oklahoma State University Botanical Gardens | Southwest | 2018 | 6b | 8 |
| Supertunia Mini Vista® Midnight Petunia | Petunia | Top Performer | Oklahoma State University Botanical Gardens | Southwest | 2022 | 6b | 8 |
| Stratosphere™ White Butterfly Flower Oenothera lindheimeri | Oenothera | Arboretum Approved | Dallas Arboretum | Southwest | 2006 | 8a | 9 |
| Unplugged® Red scarlet sage Salvia coccinea | Salvia | Perfect Score | Oklahoma State University Botanical Gardens | Southwest | 2024 | 6b | 8 |
| GoldDust® Mecardonia | Mecardonia | 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 |
| Graceful Grasses® Ogon Golden Variegated Sweet Flag Acorus gramineus | Acorus | Arboretum Approved | Dallas Arboretum | Southwest | 2006 | 8a | 9 |
| Artist® Blue Flossflower Ageratum | Ageratum | Rising Star | 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 |
| Butterfly White Pentas lanceolata | Pentas | Arboretum Approved | Dallas Arboretum | Southwest | 2005 | 8a | 9 |
| ColorBlaze® Chocolate Drop Coleus scutellarioides | Coleus | Perfect Score | Oklahoma State University Botanical Gardens | Southwest | 2023 | 6b | 8 |
