Every summer UNH Cooperative Extension offices across New Hampshire get calls like this from panicked
“Ewwww! There’s an orange-yellow slimy blob that’s growing in the bark mulch around our shrubs.
Almost overnight it seems to have grown from a small patch of what we thought was dog vomit to a giant
thing the size of a bath towel! It’s creepy, like some alien creature. Help!”
Don’t blame the landscaper who spread your mulch or the garden supply retailer you bought it from. The
blob-like invader is a slime mold, whose biological name is Fuligo septica, one of an unusual class of
organisms that sometimes behave like plants, sometimes like animals.
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Creator: Cheryl Smith