Dirr 2012 Breeding, Selection, and Marketing new hydrangea
Found this while doing some research on a plant.Newer hydrangea performace report good info.
Here is a sample
Hydrangeas, particularly H. macrophylla, have accelerated in popularity and numbers in the last
decade, the impetus being Endless SummerÃÂ®, a remontant cultivar that injected excitement and hope
into the genus. Since 2000, over 90 hydrangeas were patented with numerous European and Asian
pot-plant cultivars sourced, renamed, and perhaps trademarked. Most are not worthy of a garden
HOOT! Also, many are promoted as reblooming (remontant) to compete with the Endless SummerÃÂ®
brand. At Plant Introductions, Inc., we trial Ã¢ÂÂnewÃ¢ÂÂ introductions against the true rebloomers . . .
Endless SummerÃÂ®, Ã¢ÂÂDavid RamseyÃ¢ÂÂ, Ã¢ÂÂOak HillÃ¢ÂÂ, Ã¢ÂÂPenny MacÃ¢ÂÂ, Ã¢ÂÂDecatur BlueÃ¢ÂÂ, etc. Reblooming data
are included herein. Enjoy!
Here is a link that might be useful: http://metrohort.org/uploads/DIRR_Hydrangeas_Breeding.pdf