The Backyard Naturalists
The Backyard Naturalists
Debbie Foster and Laurie Horne
The Plant That Ate the World: All About Japanese Knotweed
22 minutes Posted Aug 2, 2025 at 10:30 am.
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Show notes

What do you get when you cross a fast-growing, hard-to-kill, concrete-cracking plant with curious naturalists and a microphone? You get this week’s brand-new episode of The Backyard Naturalists! Debbie and Laurie are back and diving into the wild, weird world of Japanese knotweed—also known as "the plant that ate the world."

It’s not every day a plant earns a reputation as one of the most invasive species on the planet. But Japanese knotweed? It’s in a class all its own. Originally introduced for landscaping and erosion control (oops), it’s now banned in many states and countries—and for good reason. This episode unpacks what makes this plant so aggressive, how it crowds out native species, and why it’s such a pain to control once it gets a foothold. (Spoiler alert: Cutting it down once isn’t going to cut it.)

Along the way, you’ll hear some fascinating facts, a few laughs (because, well, it’s Debbie and Laurie), and tips on what to do if this overachieving vine starts popping up in your backyard. Is there hope? Yes—but it takes knowledge, patience, and a whole lot of persistence.

Whether you’re a seasoned naturalist, a weekend gardener, or just someone who loves a good plant horror story, this episode is packed with insight and charm—and might just inspire you to take a second look at the plants in your own yard.

🌱 So grab your coffee, settle in, and tune in as we explore the tangled tale of the plant that’s overstayed its welcome all across the globe.

🎧 Listen now wherever you get your podcasts—and maybe warn your neighbors too!