Santolina species are used as food plants by the larvae of some Lepidoptera species including Bucculatrix santolinella (feeds exclusively on S. chamaecyparissus) and the Coleophora case-bearers C. albicella (recorded on S. chamaecyparissus), C. involucrella (feeds exclusively on Santolina spp) and C. santolinella (feeds exclusively on S. chamaecyparissus).