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Mature Climbing Hydrangea

Posted by pjt108 6 (My Page) on
Mon, Jun 18, 12 at 13:29

I have a mature climbing hydrangea growing up two (now dead) hemlocks. The hemlocks were not dead when the hydrangea first started climbing. Two things: could the hydrangea have killed the hemlocks and if I cut the upper portion of the hemlocks off about three feet above the current height of the climbing hydrangea, what will happen to it?

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RE: Mature Climbing Hydrangea

1) Not likely; it is more likely that the trees died from either insects (woolly adelgid), diseases like needle blight or root rot. Those are common problems with eastern and canadian hemlock.

2) Nothing if you leave the trees there and only chop their top down so it remains above the CH. But CH likes to start blooming strong as soon as it gets to the top of whatever structure it is climbing so, it may bloom more next season.

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