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Show Notes
Dr. Russell Sharp explores the surprising world of bee-unfriendly plants — species whose nectar or flower structure can harm bees or taint honey. Examples discussed include rhododendron and Kalmier (gravinotoxin), the strawberry tree (arbutin), tulips and lime (toxic sugars), nicotine-laced tobacco, and double/ornamental flowers that block pollinators.
The episode also considers theories for why plants produce toxic nectar (defense, limiting nectar intake, or intoxicating pollinators) and highlights wind-pollinated and ancient beetle-pollinated plants that offer little to bees.
Takeaway: if you want to protect pollinators or honey quality, be mindful of what you plant and prioritize diverse, bee-friendly species — and remember native wild bees matter too.
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