How long is poison ivy active? Will a frost or cold weather make it dormant?
Poison Ivy Control
Certified GKH Gardening Expert
As summer fades, so does the poison ivy. While these plants do go dormant in fall and winter, be aware that they can still cause problems. The poison remains active even after the plant is dead. If you're looking to get rid of poison ivy (or oak), treat with herbicide first (to kill the roots) then, wearing gloves, hand pull dead plant material and dispose of it. Do not burn it, however, as the poison can be breathed in and will result in a nasty rash. Here is an article that you may find helpful: https://www.gardeningknowhow.com/special/starting/poison-ivy-control.htm