Are there any swallowtail caterpillars (or other worms) eating your plant? Looks like frass
Constipatic_acid
That looks like frass, aka insect herbivore poop.
Can you check the plant if there’s insects like caterpillars on it? If possible, carefully take it out of the pot and check the roots as well; some caterpillars hide in the soil during the day and emerge at night to feed on the foliage
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Are there any swallowtail caterpillars (or other worms) eating your plant? Looks like frass
That looks like frass, aka insect herbivore poop.
Can you check the plant if there’s insects like caterpillars on it? If possible, carefully take it out of the pot and check the roots as well; some caterpillars hide in the soil during the day and emerge at night to feed on the foliage
Caterpillar poo.