Best Regional Plants
| Plant Name | Genus | Award | Trial |
Region |
Year | Trial Cold Hardiness | Trial Heat Zone |
|---|---|---|---|---|---|---|---|
| Dragon Wing® Red Angelwing Begonia Begonia hybrid | Begonia | Flame Proof | Dallas Arboretum | Southwest | 2005 | 8a | 9 |
| Charmed® Wine Shamrock Oxalis triangularis | Oxalis | Arboretum Approved | Dallas Arboretum | Southwest | 2005 | 8a | 9 |
| 'Flamenco Samba' Cuphea llavea | Cuphea | Flame Proof | Dallas Arboretum | Southwest | 2006 | 8a | 9 |
| ColorBlaze® Royale Apple Brandy® Coleus scutellarioides | Coleus | Perfect Score All Season | Oklahoma State University Botanical Gardens | Southwest | 2020 | 6b | 8 |
| 'Golden Delicious' Golden Leaved Pineapple Sage Salvia elegans | Salvia | FlameProof Plants | Dallas Arboretum | Southwest | 2020 | 8a | 9 |
| Superbells® Honeyberry™ Calibrachoa hybrid | Calibrachoa | Top Performer | 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 |
| Campfire® Marshmallow™ Bidens hybrid | Bidens | Perfect Score | Oklahoma State University Botanical Gardens | Southwest | 2023 | 6b | 8 |
| 'Sweet Caroline Light Green' Sweet Potato Vine Ipomoea batatas | Ipomoea | Flame Proof | Dallas Arboretum | Southwest | 2003 | 8a | 9 |
| Black Pearl Pepper Capsicum | Capsicum | Flame Proof | Dallas Arboretum | Southwest | 2005 | 8a | 9 |
| Limon Blush™ Coleus scutellarioides | Coleus | Top Performer | Oklahoma State University Botanical Gardens | Southwest | 2008 | 6b | 8 |
| Butterfly Deep Rose Pentas lanceolata | Pentas | Flame Proof | Dallas Arboretum | Southwest | 2006 | 8a | 9 |
| Beth's Blue® Star Flower Isotoma axillaris | Isotoma | Best Performer | Dallas Arboretum | Southwest | 2009 | 8a | 9 |
| Luscious® Citrus Blend™ Lantana camara | Lantana | Top Performer | Dallas Arboretum | Southwest | 2019 | 8a | 9 |
| Daredevil® Rosita Zonal Geranium Pelargonium zonale | Pelargonium | Top Performer | Oklahoma State University Botanical Gardens | Southwest | 2009 | 6b | 8 |
| Diamond Frost® Euphorbia hybrid | Euphorbia | Top Performer | Oklahoma State University Botanical Gardens | Southwest | 2008 | 6b | 8 |
| GoldDust® Mecardonia hybrid | Mecardonia | Top Performer | Oklahoma State University Botanical Gardens | Southwest | 2010 | 6b | 8 |
| Sweet Caroline Bewitched After Midnight™ Sweet Potato Vine Ipomoea batatas | Ipomoea | Top Performer | Dallas Arboretum | Southwest | 2021 | 8a | 9 |
| ColorBlaze® Golden Dreams™ Coleus scutellarioides | Coleus | Perfect Score All Season | Oklahoma State University Botanical Gardens | Southwest | 2018 | 6b | 8 |
| Diamond Frost® Euphorbia hybrid | Euphorbia | Rising Star | Dallas Arboretum | Southwest | 2007 | 8a | 9 |
