 | Pink Diamond Panicle Hydrangea. If you don't know about the Pink Diamond Panicle Hydrangeas, then you're in for a treat! Pink Diamond Hydrangea (Hydrangea paniculata 'Pink Diamond') is an amazing addition to your garden this year. This isn't the big flower-ball shrub you might think of when you imagine a Hydrangea in your yard! Instead, this is a form of Hydrangea forms panicles, named because the flowers aren't rounded, but grow in upright spires that elongate throughout the growing season and have a cone-shaped appearance. Pink... - Pink Diamond Panicle Hydrangea. |