Poison Ivy spreading on Pelee island came as quite a shock to me! Poison ivy is not new to rural gardeners and has been the subject of many an information search. This noxious weed has even been mentioned in a few of my past blogs and found intermittently in my cottage garden,so it certainly should come as no surprise that I have witnessed first hand that it can indeed spread widely! Still, never in my wildest dreams did I imagine that even on vacation I would find it… on an island!
Yes, I have currently visited Pelee Island and there the, rash inducing vine was just waiting for me! I was walking along enjoying the beautiful island scenery on a lovely sunny day, unaware of what lay below! Walking between the stones in the older section of the island’s cemetery, I saw one particular head stone had fallen over and a weed sticking out between the pieces. Thinking of respectfully clearing it away, I reached down only to catch myself in time to avoid touching the three leaves!
After recovering from that surprise, I scanned other areas of the cemetery and noticed the Poison Ivy spreading to the point of taking over a family plot. Then of course there was more! Several trees had it climbing up their bark, it was growing in the sand and on the path at Fish Point Park…Canada’s most southerly point and it was on almost every walking trail!
Now I was careful to walk, as the Buddhists would say, with mindfulness! My eyes were peeled to the ground around me as I walked in sandal-ed feet. Despite this green plaque, I did have a lovely time and would recommend visiting Pelee. On the horticulture front, there was an unusual site…that of some strange disease that left red bumps on the leaves of the poison Ivy. Could this be our salvation?
Poison Ivy Spreading on Pelee Island
I have decided that while there are many things that kill the toxic weeds in small patches, killing in large scale requires a great deal of work. What is not apparent with all sprays, blocking and cutting controls methods is the HUGE amount of patience and dedication required by the murderer ( alias the gardener)!
Surely if birds or contaminated soil brought the seeds to this island, how do we stand a chance against Poison Ivy spreading ? In fact, whether here in Ontario or our neighbours to the South, it seems the berries from poison ivy are an attractive food to a wide variety of birds .According other sites I have read, over 50 species of birds are known to eat the small white round berries.
After further reading, I have come to realize that despite my personal run-ins with poison ivy, the rash, blisters and swelling, it is just another weed that can be controlled with lots of work. The biggest surprise was how interesting the information was on this particular plant is.
Many sites provide good information on how the birds transport the seeds. Stating that the non-digestible seeds are, passed out in to the soil and fertilized by the very birds that ate them, certainly explains the plants spread. I assume then, as Pelee Island and the surrounding area is on a major migratory route and home to vast varieties of birds, finding this Poison Ivy spreaad to an island shouldn’t have been a surprise.
In fact the extent of this particular poisonous plant is from parts of Mexico in the south, in to the northern parts of Canada. Details provided in my searching say the plants can grow in most types of soil, from pH 6.0 to 7.9 (slightly acidic to slightly basic) and can tolerate moderate shade to full sun. Wow, it certainly is resilient!
One natural factor against the plant is high altitude as provided by the Rocky Mountains. The thinner air above 4000 feet seems to stifle these plants and to provide a physical barrier in both Canada and the U.S.A, with Poison Ivy on the east and poison Sumac in the west. Certainly nature does what it wants and like all perennial weeds, poison Ivy is determined to spread unless we work on controlling it.
Control and elimination are something that plaques many of us, especially if we have suffered with the rash, blisters and pain left by the urushiol from all parts of this plant .Yet, to the Japanese this oily compound is highly valued as a finish used since the 16th century as the finish on their Lacquerware. The process they use is quite fascinating, but the source there is an urushi tree (Rhus vernicifera) which is becoming rare. At least with a tree, other trees would be safe from the clinging vine that eventually can strangle them and walking trails would be safer.
Despite any risk in my hiking on Pelee Island, the views and people there were lovely and I would recommend the ferry ride as well. From the most southern point of Canada, looking across the vast expanse of the sand point and the water beyond, the poison ivy spread on Pelee Island was forgotten…and inspiration was supreme!
Other sources of information: