Best Regional Plants
| Plant Name | Genus |
Award |
Trial | Region | Year | Trial Cold Hardiness | Trial Heat Zone |
|---|---|---|---|---|---|---|---|
| Graceful Grasses® Toffee Twist Toffee Twist Sedge Carex flagellifera | Carex | Very Good | Massachusetts Horticultural Society at Elm Bank | Northeast | 2010 | 6a | 4 |
| Diamond Frost® Euphorbia hybrid | Euphorbia | Very Good | Massachusetts Horticultural Society at Elm Bank | Northeast | 2010 | 6a | 4 |
| Graceful Grasses® Purple Fountain Grass Pennisetum setaceum 'Rubrum' | Pennisetum | Very Good | Massachusetts Horticultural Society at Elm Bank | Northeast | 2010 | 6a | 4 |
| Supertunia Vista® Bubblegum® Petunia hybrid | Petunia | Very Good | Massachusetts Horticultural Society at Elm Bank | Northeast | 2010 | 6a | 4 |
| Supertunia Vista® Silverberry Petunia hybrid | Petunia | Very Good | Massachusetts Horticultural Society at Elm Bank | Northeast | 2010 | 6a | 4 |
| ColorBlaze® Dipt in Wine Coleus scutellarioides | Coleus | Very Good | Massachusetts Horticultural Society at Elm Bank | Northeast | 2010 | 6a | 4 |
| Diamond Frost® Euphorbia hybrid | Euphorbia | Trial Managers Pick | Penn State | Northeast | 2004 | 6a |
5 6 |
| Diamond Frost® Euphorbia hybrid | Euphorbia | Trial Managers Pick | Penn State | Northeast | 2004 | 6a |
5 6 |
| Diamond Frost® Euphorbia hybrid | Euphorbia | Trial Managers Pick | Penn State | Northeast | 2004 | 6a |
5 6 |
| Diamond Frost® Euphorbia hybrid | Euphorbia | Trial Managers Pick | Penn State | Northeast | 2004 | 6a |
5 6 |
| Diamond Frost® Euphorbia hybrid | Euphorbia | Trial Manager's Favorite | Colorado State University | Mountain | 2005 | 5b | 5 |
| Diamond Frost® Euphorbia hybrid | Euphorbia | Trial Manager's Favorite | Colorado State University | Mountain | 2005 | 5b | 5 |
| Diamond Frost® Euphorbia hybrid | Euphorbia | Trial Manager's Favorite | Colorado State University | Mountain | 2005 | 5b | 5 |
| Diamond Frost® Euphorbia hybrid | Euphorbia | Trial Manager's Favorite | Colorado State University | Mountain | 2005 | 5b | 5 |
| Rockapulco® Coral Reef Double Impatiens Impatiens walleriana | Impatiens | Trial Manager Favorites | Oregon State University | Northwest | 2011 | 7b | 4 |
| Rockapulco® Coral Reef Double Impatiens Impatiens walleriana | Impatiens | Trial Manager Favorites | Oregon State University | Northwest | 2011 | 7b | 4 |
| Snow Princess® Sweet Alyssum Lobularia hybrid | Lobularia | Trial Manager Favorite | University of Guelph | Canada | 2009 | ||
| Snow Princess® Sweet Alyssum Lobularia hybrid | Lobularia | Trial Manager Favorite | University of Guelph | Canada | 2009 | ||
| Snow Princess® Sweet Alyssum Lobularia hybrid | Lobularia | Trial Manager Favorite | University of Guelph | Canada | 2009 | ||
| Amazel Basil® Sweet Italian Basil Ocimum hybrid | Ocimum | Top Ten Vegetable | Massachusetts Horticultural Society at Elm Bank | Northeast | 2018 | 6a | 4 |
