This is my second question. First, Hello Peter! I didn’t realize that it was YOU who would be responding to my question. I read your column weekly and I’m hooked on all your advise, thanks, you’re a wonder! Now…we have moved into my Grandmother’s home and I’m thrilled to work in her gardens that have been long forgotten. Her Whisteria vine has grown massive, at least 50 feet up the trees and the trunks are enormous! It flowers way up in the tree tops, beautiful lavender/bluish flowers (thought it was lilac) but I’d like to cut it down and start over so I can train it properly and save the trees from being strangled. Will it flower if I cut it down or will I have to wait 15 years? I also found it’s seeds all over the lawn, can I plant them? How long before it flowers? 15 years? As I read online? What should I do? Thanks Peter, for the help! Sue

Wow, that is one out of control wisteria. I’d suggest cutting it back right away to about 4′. This will force it to regrow from the roots so you can save the trees and retrain the wisteria to a more managable size. This is severe pruning and the wisteria won’t flower this year and it may take 3 or 4 years to rebloom. Since the root system is well established it won’t take 15 years to rebloom. I have no direct experience growing wisteria from seed but here’s a tutorial: http://www.ehow.com/how_2214274_grow-wisteria-seeds.html This will be a long, slow process and it will likely be 15 years before you see a flower from a wisteria started from seed. Peter Bowden

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