Quote:
Originally Posted by Hemlock140
Ours have reached at least 10'. If you want them tall they will get there eventually. My problem is the opposite, they got too tall and they only bloom on the previous year's growth so pruning them means no flowers for a year. They do also tend to send up new growth from the roots in our wet climate so they become bushy, not leggy.
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They'll bloom the year after pruning, but as with most flowering shrubs you need to do it as soon as they're finished flowering.