Ten plants were designated as top-performing herbaceous perennials from the 2013 Colorado State University trials. They have been overwintered for two winters and three growing seasons before they were given this distinction.
A total of 20 plants of each variety were planted and evaluated every two weeks during the growing season.
Also, one Too Good To Wait performer from the 2013 season from the 2012 class and grown for just one season is mentioned.
The plants were evaluated by both university and industry personnel, as well as some advanced Master Gardeners.
Update On Top Performers For The 2013 Season: Class Of 2011, Grown In 2013
- Anemone hupehensis ‘Pretty Lady Diana’ (Blooms of Bressingham)
- Baptisia ‘Decadence Lemon Meringue’ (Walters Gardens/Proven Winners)
- Geranium ‘Eureka Blue’ (Blooms of Bressingham)
- Hibiscus ‘Summerific Cranberry Crush’ (Walters Gardens/Proven Winners)
- Nepeta ‘Novanepjun’ (Star Roses and Plants/The Conard-Pyle Co.)
New Top Performers For The 2013 Season: Class of 2011, Grown in 2013
- Anemone hupehensis ‘Pretty Lady Emily’ (Blooms of Bressingham)
- Penstemon schmidel ‘Blue Riding Hood’ (Pacific Plug and Liner)
- Phlox glaberrima ssp. triflora ‘Triple Play’ (Creek Hill Nursery & Eason Horticultural Resources)
- Salvia nemorosa ‘Balyriclu’ (Darwin Perennials)
Too Good To Wait Performer for the 2013 Season: 2012 Class, Grown in 2013
- Agastache ‘Blue Boa’ (Terra Nova Nurseries)