Flat sea holly
Eryngium planum
- Blütezeit
- July–September
- Nektar
- sehr gut
- Pollen
- mittel
The Flat Sea Holly flowers from July to September with steel-blue flower heads above a ring of spiny bracts. It comes from eastern Europe and is planted in gravel and prairie plantings. Despite its thistle-like appearance it belongs to the carrot family. It provides nectar very well and is besieged for weeks in high summer. British measurements give around 13 micrograms of sugar per flower per day.
Quellen (5)
- Eryngium planum, Wikipedia
- Eryngium planum, Euro+Med PlantBase über PESI
- Eryngium planum, GBIF Backbone Taxonomy
- Filipiak, Walczyńska, Denisow, Petanidou, Ziółkowska (2022): Phenology and production of pollen, nectar and sugar in 1612 plant species from various environments
- Tew, Baldock, Morten, Bird, Vaughan, Memmott (2023): A dataset of nectar sugar production for flowering plants found in urban greenspaces