Poison Ivy most commonly grows in areas that are in partial shade. This is the poison ivy most commonly found in wooded areas and along trails. It generally doesn't like the deep shade and generally avoids the full sun (with some exceptions).
We have been treating some parks and trails for the City of Hamilton and for the Hamilton Conservation Authority. As you walk along a path, poison ivy usually is found near the spots where there is the right amount of sunlight.
Having said that, there appears to be a variety of poison ivy that tolerates more sun. We treated one patch that was growing in the full sun on rocks along the shore of Lake Erie. And we treated some poison ivies that were growing in a former farm field.
In areas at the edges of lawns, where mowing is done regularly, the ivy will creep along the ground with leaves popping up every 4 to 6 inches along the stem.
In some case in the wild, the poison ivy can grow into small shrubs about 4 feet high.
In one case, a poison ivy was able to climb along a fence and then attach itself to a small tree so that its vines were hanging down from the tree branches 6 feet off the ground.
Since poison ivy leaves, stems and roots all contain a resinous sap called Urushiol that can cause severe rash and itching on any skin that is exposed to it.
In residential situations, there may be some damage to plants in the vicinity if these ornamental plants are growing near the poison iv. The treatment will affect any plants whose foliage is contacted by the spray.
More Info from the Province of Ontario
Call to request our help with your Poison Ivy or Poison Oak Problems.
Also call us for Poison sumac, Giant Hogweed, Wild Parsnip. All of these can cause uncomfortable and painful itching and rashes.
Removal of Dead Poison Ivy
Once sprayed, the poison ivy will turn yellow and die in about 2 weeks.
After that the stems and vines can be removed. Give it some time before removal as the herbicide is translocated from the leaves to the roots. So you want to give it lots of time to kill as much of the root as possible.
The dead leaves and stems and even the roots still contain the toxin- so gloves and protection are recommended when the dead plants are removed.
Removal may not always be required, It depends on where the poison ivy was located. If it was under some bushes, the stems will eventually rot and disappear. If in a location that puts people at risk, then removal is best. The dead roots will also rot and disappear. They shouldn't be a problem unless they were growing, for instance in a sand box.
Depending on the root system, there may be some regrowth the next year or there may be seeds nearby that will sprout up again. So we would recommend checking those infested areas again next year and to respray again as needed.
Preventing Poison Ivy Rash From Field and Stream Magazine- clean it thoroughly off your skin- See how.