Best Regional Plants
| Plant Name | Genus | Award | Trial |
Region |
Year | Trial Cold Hardiness | Trial Heat Zone |
|---|---|---|---|---|---|---|---|
| Beth's Blue® Star Flower Isotoma axillaris | Isotoma | Arboretum Approved | Dallas Arboretum | Southwest | 2006 | 8a | 9 |
| Snow Princess® Sweet Alyssum Lobularia hybrid | Lobularia | Rising Star | Dallas Arboretum | Southwest | 2011 | 8a | 9 |
| Luscious® Royale Red Zone™ Lantana camara | Lantana | Perfect Score All Season | Oklahoma State University Botanical Gardens | Southwest | 2020 | 6b | 8 |
| Diamond Frost® Euphorbia hybrid | Euphorbia | North Texas Winners Circle | Dallas Arboretum | Southwest | 2004 | 8a | 9 |
| Sweet Caroline Sweetheart Mahogany™ Ornamental Sweet Potato Vine Ipomoea hybrid | Ipomoea | Perfect Score | Oklahoma State University Botanical Gardens | Southwest | 2023 | 6b | 8 |
| ColorBlaze® Cherry Drop Coleus scutellarioides | Coleus | Top Performer - Hanging Basket - Sun | Dallas Arboretum | Southwest | 2024 | 8a | 9 |
| Small Leaf Creeping Wire Vine Muehlenbeckia axillaris | Muehlenbeckia | Arboretum Approved | Dallas Arboretum | Southwest | 2006 | 8a | 9 |
| Diamond Frost® Euphorbia hybrid | Euphorbia | Field Day Top Pick | Dallas Arboretum | Southwest | 2006 | 8a | 9 |
| Beth's Blue® Star Flower Isotoma axillaris | Isotoma | Best Performer | Dallas Arboretum | Southwest | 2009 | 8a | 9 |
| Hippo® White Polka Dot Plant Hypoestes phyllostachya | Hypoestes | Perfect Score All Season | Oklahoma State University Botanical Gardens | Southwest | 2018 | 6b | 8 |
| Limon Blush™ Coleus scutellarioides | Coleus | Top Performer | Oklahoma State University Botanical Gardens | Southwest | 2010 | 6b | 8 |
| ColorBlaze® Chocolate Drop Coleus scutellarioides | Coleus | Perfect Score All Season | Oklahoma State University Botanical Gardens | Southwest | 2018 | 6b | 8 |
| Supertunia Vista® Bubblegum® II Petunia hybrid | Petunia | Top Performer | Oklahoma State University Botanical Gardens | Southwest | 2008 | 6b | 8 |
| Graceful Grasses® Fiber Optic Grass Isolepis (Scirpus) cernua | Isolepis (Scirpus) | Top Performer | Oklahoma State University Botanical Gardens | Southwest | 2010 | 6b | 8 |
| Diamond Frost® Euphorbia hybrid | Euphorbia | Top Pick | Dallas Arboretum | Southwest | 2005 | 8a | 9 |
| Forest™ Pink Globe Amaranthus Gomphrena haageana | Gomphrena | Perfect Score All Season | Oklahoma State University Botanical Gardens | Southwest | 2018 | 6b | 8 |
| Butterfly Deep Rose Pentas lanceolata | Pentas | Arboretum Approved | Dallas Arboretum | Southwest | 2005 | 8a | 9 |
| Diamond Frost® Euphorbia hybrid | Euphorbia | Top Pick | Dallas Arboretum | Southwest | 2006 | 8a | 9 |
| Supertunia Vista® Silverberry Petunia hybrid | Petunia | Top Performer | Oklahoma State University Botanical Gardens | Southwest | 2009 | 6b | 8 |
| Catalina® Gilded Grape™ Wishbone Flower Torenia hybrid | Torenia | Top Performer | Oklahoma State University Botanical Gardens | Southwest | 2009 | 6b | 8 |
