I recently bought a Black Elder (Sambucus niger) for friend who's
growing a bird- friendly garden. She also has two dogs, one a puppy.

She was concerned to read on the label that the plant is "harmful if
eaten". Since both elder flowers and elderberries are a food, what's
harmful? Is it the bark or sap, or something else? Or simply
over-cautious labelling.
--
Andy Mabbett

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