Garden Carpet

Adventure step • Meet the species

Overview

The Garden Carpet is one of the most common moths in the Nordic region and a familiar sight in gardens throughout Europe. This small geometrid moth gets its name from the characteristic wavy cross-bands that run across its grayish to brownish wings. With a wingspan of 20-28 millimeters, the pattern varies considerably between individuals – from almost plain gray to distinctly marked with dark cross-bands. They belong to the family Geometridae, which is evident in the caterpillars' characteristic looping movement as they inch along like someone measuring fabric. The moth is active from early spring to late autumn and can produce two to three generations per year in southern regions, while northern areas typically have only one generation. The adult moths are nocturnal and are easily attracted to light sources, making them a common visitor to windows and outdoor lighting during summer nights. Despite being nocturnal, they can sometimes be seen resting on plants during the day, where their discreet color pattern provides excellent camouflage against bark and stones. The caterpillars are the real reason for the species' success. They are extremely polyphagous, meaning they can feed on an enormous number of different plant species. The Garden Carpet prefers cruciferous plants like cabbage, rapeseed, and radish, but the caterpillars also readily feed on herbs like dock, mallow, and other garden plants. The green to brownish caterpillars are relatively small and slender, reaching up to 2.5 centimeters in length when fully grown. The moth overwinters as a pupa in the ground or among plant debris, making it one of the first moths to emerge in spring. This adaptation, combined with the caterpillars' broad food choices and the ability to produce multiple generations per year, has made the Garden Carpet one of Europe's most successful and widespread moths. It plays an important role in the ecosystem both as a pollinator and as food for birds and other insectivores.