Posted Nov 27, 2021, 8:00 AM
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Join Date: Jul 2001
Location: Vancouver
Posts: 41,022
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I Googled Boston Ivy and metal cladding and found a UBC Botanical Garden thread where someone posted pics of Boston Ivy growing up sheet metal
- so there is hope that it'll work here:
https://forums.botanicalgarden.ubc.c...o-metal.58131/
Note this:
Quote:
Two summers ago, I planted three bare-root Boston Ivy starts along the back wall of the house. They didn't do much the first
summer, but several vines (2-3 per plant) did reach the top of the masonry foundation wall where it meets the bottom of the steel
siding.
Last summer, the existing vines leafed out nicely and quickly began sending new vines vertically and horizontally. Most of the vertical
vines ran into problems trying to bridge the gap between the masonry and the steel siding (the siding stands 1 or 2 inches proud of
the foundation wall). Out of impatience and curiosity, I gently helped some new reaching vines along with some painters tape to
position their newest leaves and sucker pads near the steel siding. Perhaps it was rough handling or the chemicals in the tape, but
about half of these tender shoots shriveled up on me. But the remainder attached enough that a gentle tug would not remove them. Yay!
By this spring, I had a few well-spaced vines creeping up the steel siding (perhaps 5 or 6 along the 25-30' back wall)...some just a few
feet, a couple that had made it 5-6 feet past the bottom of the siding. These seem to be growing much faster this summer and we
now have vines wrapping around the bottom sill of our second story windows (really only 10' or so off the ground) as well as the most
vigorous just reaching the antenna bracket that is probably closer to 16-18'.
I expect them to reach the top of the wall and start filling in (like they readily did on the masonry) by end of next summer. I took a
photo early this summer after it leafed out. I'll try to remember to follow up with a current photo.
I haven't tugged to see how secure the discs are attached, and I'm still wondering whether they will stay attached in the long run
when the vines are taller and heavier. BTW, this is 70's construction, so the painted metal surface may have a bit more texture than
newer steel siding. I'm looking forward to the fall color this year!
There have been a few setbacks: once a mature vine/tendril is detached for any reason (wind, weeding accidents),
it will not grow new attachment discs, and in most cases, seems to die off if flopping upside-down...
if a vine detaches, prune it off. I also underwatered them in early summer of the second year, probably stunting them a bit.
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Last edited by officedweller; Nov 27, 2021 at 8:19 AM.
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