Best Regional Plants
| Plant Name | Genus | Award |
Trial |
Region | Year | Trial Cold Hardiness | Trial Heat Zone |
|---|---|---|---|---|---|---|---|
| Rockin'® Blue Suede Shoes™ Salvia | Salvia | Top Performer | University of Tennessee - Knoxville | Southeast | 2023 | 6b | 7 |
| Supertunia Mini Vista® Yellow Petunia | Petunia | Top Performer | University of Tennessee - Knoxville | Southeast | 2025 | 6b | 7 |
| Superbells® Double Smitten Pink™ Double Calibrachoa Calibrachoa | Calibrachoa | Top Performer | University of Tennessee - Knoxville | Southeast | 2023 | 6b | 7 |
| Campfire® Marshmallow™ Bidens | Bidens | Perfect Score | University of Tennessee - Knoxville | Southeast | 2023 | 6b | 7 |
| Superbena Royale® Iced Cherry Verbena | Verbena | Top Performer | University of Tennessee - Knoxville | Southeast | 2012 | 6b | 7 |
| Vermillionaire® Large Firecracker Plant Cuphea | Cuphea | Perfect Score | University of Tennessee - Knoxville | Southeast | 2022 | 6b | 7 |
| Mojave® Red II Purslane Portulaca umbraticola | Portulaca | Top Performer | University of Tennessee - Knoxville | Southeast | 2024 | 6b | 7 |
| Mojave® Pink Purslane Portulaca umbraticola | Portulaca | Top Performer | University of Tennessee - Knoxville | Southeast | 2024 | 6b | 7 |
| Unplugged® So Blue™ Mealycup Sage Salvia farinacea | Salvia | Perfect Score | University of Tennessee - Knoxville | Southeast | 2021 | 6b | 7 |
| Graceful Grasses® King Tut® Egyptian Papyrus Cyperus papyrus | Cyperus | Best Performer | University of Tennessee - Knoxville | Southeast | 2009 | 6b | 7 |
| Señorita Rosalita® Spider Flower Cleome | Cleome | Top Performer | University of Tennessee - Knoxville | Southeast | 2011 | 6b | 7 |
| Space Age® Triton™ Rex begonia Begonia rex | Begonia | Top Performer | University of Tennessee - Knoxville | Southeast | 2024 | 6b | 7 |
| Surefire® Red II Begonia benariensis | Begonia | Top Performer | University of Tennessee - Knoxville | Southeast | 2025 | 6b | 7 |
| Supertunia® Priscilla® III Petunia | Petunia | Top Performer | University of Tennessee - Knoxville | Southeast | 2021 | 6b | 7 |
| Supertunia Mini Vista® Hot Pink Petunia | Petunia | Top Performer | University of Tennessee - Knoxville | Southeast | 2023 | 6b | 7 |
| Sweet Caroline Upside™ Key Lime Ornamental Sweet Potato Vine Ipomoea batatas | Ipomoea | Perfect Score | University of Tennessee - Knoxville | Southeast | 2023 | 6b | 7 |
| Diamond Frost® Euphorbia | Euphorbia | Top Performer | University of Tennessee - Knoxville | Southeast | 2011 | 6b | 7 |
| Fire Away® Hot and Heavy Dwarf Hot Pepper Capsicum annuum | Capsicum | Top Performer | University of Tennessee - Knoxville | Southeast | 2019 | 6b | 7 |
| Double Up™ White Begonia semperflorens | Begonia | Perfect Score | University of Tennessee - Knoxville | Southeast | 2022 | 6b | 7 |
| Supertunia Vista® Cool Jazz® Petunia | Petunia | Top Performer | University of Tennessee - Knoxville | Southeast | 2025 | 6b | 7 |
