Okay, sometimes you just need to bring out the big guns. If the ivy is huge—say, covering a wall or climbing a tree—you might need an herbicide. Glyphosate is the most common choice, but please, use it like a spray bottle of hot sauce, not a fire hose. Read the label, and only apply it on a calm, wind-free day so you don’t accidentally kill your prize-winning petunias.
Here’s a pro tip from someone who learned the hard way: cut the ivy vine first. Make a fresh cut in the main stem, then paint the herbicide directly onto that cut. The plant sucks the poison straight into its system, and you use way less chemical. It’s like giving the ivy a tiny, deadly drink instead of drenching the whole neighborhood.
Be patient, though. It takes a couple of weeks to see results. Don’t expect the ivy to drop dead overnight like a cartoon character.
