This plant is variable year-to-year for us in Georgia. Some years the flowers age to a rich pink, other years they don’t. We suspect it may have to do with the heat of our late summer. Certainly the photos we’ve seen (and the one we took at Longwood Gardens) show the rich coloration. Like all hydrangea paniculata varieties, Pink Diamond likes full sun. Ultimate height depends on your pruning. Left unpruned it can reach 10 feet, but since it blooms on the new growth of the season you can hard prune it in late winter and hold it to about 5 feet. The newer ’Pinky Winky’ (trademarked) reputedly is more consistently pink in late summer. We grow it as well but have only a few years experience. Time will tell if it performs in our garden. Zones 3 - 8.
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