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How should I prune my Amethyst Falls Wisteria?

12 years ago

My Amethyst Falls Wisteria bloomed in the Spring and I pruned and dead-headed immediately afterwards to try and promote more blooming. Last year I think it bloomed 3 times by doing this. I read someplace to prune back all the long gangly 'runners' so the plant can focus on flowering. However, I have trouble figuring out which branches are going to bloom and I do not want to cut off growth that is going to blossom. Some of the new growth developes into the flower buds, while others just keep on growing. How do I know which growth to prune off?

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