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Do Wild Bees Eat Lawn Grass Pollen? Surprising Science Says Yes
Everybody knows grasses are wind-pollinated. Right? RIGHT?? Turns out the textbooks have been quietly leaving something out. Bees — honeybees, bumblebees, sweat bees, mining bees — are visiting grass flowers and combing pale yellow pollen straight off the anthers. And they're doing it without the usual floral road signs: no nectar, no big colorful petals, no UV bullseyes. So how on earth are they finding it? In this episode we dig into the surprising science of grass pollen as bee food, the new (and shockingly recent) research showing five genera of bees collecting pollen from a single turfgrass species, what cues bees use to spot grass anthers in a sea of green, and why the lawn under your feet might be quietly feeding the bees you're trying so hard to save with your wildflowers. Spoiler: the cemetery bees from Episode 37 were in on this all along.
www.secretpollinators.com
Key Sources & DOIs
Bees on turfgrasses (the foundational work)
- Joseph, S.V., Harris-Shultz, K., Jespersen, D. (2020). Surveys of pollinators on centipedegrass (Eremochloa ophiuroides) and bahiagrass (Paspalum notatum). Insects / Journal of Entomological Science. (UGA / USDA-ARS Tifton)
- Joseph, S.V., Harris-Shultz, K. (2022). Bees forage on bahiagrass spikelets. Florida Entomologist 105(1). DOI: 10.1653/024.105.0115
- USDA-ARS press: "Grass Flowers are Something to Buzz About." ars.usda.gov/news-events
The cemetery / Andrena regularis context (callback to E37)
- Cornell research on the Andrena regularis aggregation at East Lawn Cemetery, Ithaca NY (2026 paper) — documenting grass pollen as a major nest provision.
- Earlier Cornell work on the Melissodes bimaculatus suburban lawn aggregation (2024).
- Urban-Mead, K.R. et al. (2022). Pollen consumption in male and female Andrena. Apidologie. (Documents grass pollen in Andrena diets.)
Pollen nutrition & bee diet
- Vaudo, A.D., Dyer, L.A., Leonard, A.S. (2024). Pollen nutrition structures bee and plant community interactions. (Great Basin / Eastern Sierra study, 109 plants × 75 bee subgenera.)
- Moore, E. et al. (2025). Engineered yeast provides rare but essential pollen sterols for honeybees. Nature 646: 365–371. DOI: 10.1038/s41586-025-09431-y
- Najarpoor, A. et al. (2026). Dietary pollen and carbohydrate sources influence longevity, physiology, and gut microbiota in honey bees. Scientific Reports. DOI: 10.1038/s41598-026-48586-0
How bees perceive flowers (sensory science background)
- Hempel de Ibarra, N. et al. — honeybee vision and floral pattern detection (UV/blue/green photoreceptors, low-resolution but pattern-sensitive).
- Multimodal floral signals — bumblebee work on combined scent + visual cues (Leonard lab and others).
- Muth, F. et al. — bumblebees use pollen taste/chemistry to decide whether to keep collecting (Proc. R. Soc. B).
#SecretPollinators #NativePollinators #NativeBees #PollinatorScience #BeeScience #LawnsForBees #NoMowMay #PollinatorPodcast #NaturePodcast #SciencePodcast #PlantTheSpecies #LetItBeWild #LeaveTheLeaves #GrassPollen #WildBees #SolitaryBees #Andrena #Bumblebees #HoneyBees #SweatBees #PollinatorConservation #NativePlants #PrairieGrasses #BeeFriendlyLawn #UrbanEcology #BackyardScience #PollinatorGarden #Entomology #Apidae #BeeFacts #WildBees #Lawn #Pollen
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By Kelly ParksEverybody knows grasses are wind-pollinated. Right? RIGHT?? Turns out the textbooks have been quietly leaving something out. Bees — honeybees, bumblebees, sweat bees, mining bees — are visiting grass flowers and combing pale yellow pollen straight off the anthers. And they're doing it without the usual floral road signs: no nectar, no big colorful petals, no UV bullseyes. So how on earth are they finding it? In this episode we dig into the surprising science of grass pollen as bee food, the new (and shockingly recent) research showing five genera of bees collecting pollen from a single turfgrass species, what cues bees use to spot grass anthers in a sea of green, and why the lawn under your feet might be quietly feeding the bees you're trying so hard to save with your wildflowers. Spoiler: the cemetery bees from Episode 37 were in on this all along.
www.secretpollinators.com
Key Sources & DOIs
Bees on turfgrasses (the foundational work)
- Joseph, S.V., Harris-Shultz, K., Jespersen, D. (2020). Surveys of pollinators on centipedegrass (Eremochloa ophiuroides) and bahiagrass (Paspalum notatum). Insects / Journal of Entomological Science. (UGA / USDA-ARS Tifton)
- Joseph, S.V., Harris-Shultz, K. (2022). Bees forage on bahiagrass spikelets. Florida Entomologist 105(1). DOI: 10.1653/024.105.0115
- USDA-ARS press: "Grass Flowers are Something to Buzz About." ars.usda.gov/news-events
The cemetery / Andrena regularis context (callback to E37)
- Cornell research on the Andrena regularis aggregation at East Lawn Cemetery, Ithaca NY (2026 paper) — documenting grass pollen as a major nest provision.
- Earlier Cornell work on the Melissodes bimaculatus suburban lawn aggregation (2024).
- Urban-Mead, K.R. et al. (2022). Pollen consumption in male and female Andrena. Apidologie. (Documents grass pollen in Andrena diets.)
Pollen nutrition & bee diet
- Vaudo, A.D., Dyer, L.A., Leonard, A.S. (2024). Pollen nutrition structures bee and plant community interactions. (Great Basin / Eastern Sierra study, 109 plants × 75 bee subgenera.)
- Moore, E. et al. (2025). Engineered yeast provides rare but essential pollen sterols for honeybees. Nature 646: 365–371. DOI: 10.1038/s41586-025-09431-y
- Najarpoor, A. et al. (2026). Dietary pollen and carbohydrate sources influence longevity, physiology, and gut microbiota in honey bees. Scientific Reports. DOI: 10.1038/s41598-026-48586-0
How bees perceive flowers (sensory science background)
- Hempel de Ibarra, N. et al. — honeybee vision and floral pattern detection (UV/blue/green photoreceptors, low-resolution but pattern-sensitive).
- Multimodal floral signals — bumblebee work on combined scent + visual cues (Leonard lab and others).
- Muth, F. et al. — bumblebees use pollen taste/chemistry to decide whether to keep collecting (Proc. R. Soc. B).
#SecretPollinators #NativePollinators #NativeBees #PollinatorScience #BeeScience #LawnsForBees #NoMowMay #PollinatorPodcast #NaturePodcast #SciencePodcast #PlantTheSpecies #LetItBeWild #LeaveTheLeaves #GrassPollen #WildBees #SolitaryBees #Andrena #Bumblebees #HoneyBees #SweatBees #PollinatorConservation #NativePlants #PrairieGrasses #BeeFriendlyLawn #UrbanEcology #BackyardScience #PollinatorGarden #Entomology #Apidae #BeeFacts #WildBees #Lawn #Pollen