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Frugal Gardening
Frugal Gardening
Lifestyle
Amanda Blankenship

These Invasive Worms Are Turning Garden Soil Into Something That Looks Like Coffee Grounds

invasive jumping worms
Invasive jumping worms can transform healthy garden soil into loose, coffee-ground-like castings while rapidly consuming surface organic matter. Their unusual movements and pale body bands can help gardeners recognize a potential infestation. Garna Zarina/Shutterstock

Imagine walking into your garden and discovering that the rich, dark soil you’ve spent years improving suddenly looks like someone dumped coffee grounds across your flower beds. The texture is loose, crumbly, and strangely granular, almost like dry taco meat. You might assume your compost is breaking down beautifully, but that unusual soil could actually be a warning sign.

The culprit may be invasive jumping worms, an increasingly concerning group of earthworms that can dramatically change soil conditions in gardens, forests, and landscaped properties.

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