Never Burn This Plant When Cleaning Up the Yard — Even If It Looks Dead

A dead-looking poison ivy vine can still contain urushiol, the oil that causes its irritating rash, so gardeners should never burn suspicious vines, leaves, or stems during yard cleanup – Shutterstock

Poison ivy can look like nothing more than a crispy pile of garden debris when the season turns, but that dead-looking material deserves a very wide berth. Burning it can send urushiol, the oily substance that causes poison ivy’s infamous rash, into the smoke, creating a much bigger problem than a few itchy spots. The same warning applies to poison oak and poison sumac, so that innocent-looking brush pile can hide a nasty surprise.

Yard cleanup often comes with a satisfying little ritual: rake everything into a pile, strike a match, and watch the mess disappear. Unfortunately, poisonous plants can turn that tidy shortcut into a respiratory hazard, and dead foliage does not magically lose its irritating oils when the leaves turn brown. A little caution before cleanup can prevent a very unpleasant aftermath.