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Wednesday, February 22, 2012

Pulling Ivy

             Ivy Ghosts
English ivy (Hedera helix) is a fellow ex-pat. but not a well-behaved one in my garden! This plant shows restraint in its homeland, but on this side of the Atlantic it has no natural enemies and becomes invasive. Woodland areas overrun with ivy are known as “ivy deserts” because nothing else can grow through it. Also, it does not provide habitat for wildlife, except perhaps for rats. Recently, I spent a mild winter afternoon trying to save two large trees (ivy ghosts) from being strangled by the stuff. I cut through the ring of large woody stems (some with the thickness of my forearm) near the base of the tree trunk and released the vines by pulling them up and away as far up as I could. Days later the ivy left on the tree is still green and not dying at all! It seems that the vine’s adventitious roots continue to absorb water from the tree bark. An arborist will have to finish the job for me. 

At ground level, pulling ivy is also a year-round battle. I use a method recommended by 
Ivy Out http://www.ivyout.org/ivyremove.html) and roll it up into large logs. Indeed, the soil exposed after rolling an ivy log appears to be dead and dry. A layer of leaf mulch is essential to stop erosion and to build the soil before I can begin to restore the area with native plants. 

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