The Noctuidae or owlet moths are a family of robustly built moths that includes more than 35,000 known species out of possibly 100,000 total, in more than 4,200 genera. They constitute the largest family in the Lepidoptera.
Frequenting mainly wooded habitats, this species occurs fairly commonly throughout the British Isles.
The single generation flies in June and July and visits light and sugar, as well as certain flowers.
The polyphagous caterpillars hibernate when quite small and feed in spring on various trees and shrubs.
This is not my photo below but from UK moths to show you what the adult moth looks like