Product review for Jackmanii Clematis Overall Rating: Write an online review and share your thoughts with other customers Sort Reviews: Newest | Oldest | Highest Rating | Lowest Rating   :: Viewing page 1 of 1  -  Monday, April 14, 2008 Keeps on coming back Reviewed By: Robert (Ukiah, CA) Wonderfull. Just keeps coming back every year. Have no Idea why. I do not take care of it.  -  Wednesday, October 07, 2009 Will not grow Reviewed By: Charlie Campbell (Grayland, WA) These(2)got to about 18 inches then stopped growing. I have no idea why. I take care of them.