Oligolectic on Echium (Boraginaceae) (A. Müller, unpublished, based on 45 pollen samples from 18 different localities and field observations). Le Goff (2011) lists Echium plantagineum (Boraginaceae) as a forage source in Spain.
Mavromoustakis (1948, 1951) reports that this species (under the synonym Osmia crenulata) will visit Echium sericeum (Boraginaceae) in Cyprus.