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Knautia arvensis
Also called Bluebuttons, Field Scabious, Blue Buttons, Gypsy's Rose
Field scabious (Knautia arvensis) is a perennial wildflower of grassy places with blue-purple pincushion-like flower heads from May to August. It grows best in open sun and in soils that are not too heavy, and it is often seen in meadows and roadside verges.
Knautia arvensis, commonly known as field scabious, is a herbaceous perennial species of flowering plant in the honeysuckle family Caprifoliaceae.
It is occasionally used by the marsh fritillary as a foodplant instead of its usual foodplant of devils bit scabious (Succisa pratensis). It is also the foodplant of the narrow-bordered bee hawk-moth (Hemaris tityus).
Hungarian Widow Flower · Macedonian Scabious · Widow flowers
Text excerpted from the Wikipedia article Knautia arvensis by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.
The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.
Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.
