07/21/2026
While butterflies get much of the attention in native gardening, Canadaโs moth diversity is truly incredible, with over 11,000 species found across the country.
The best way to support moths is not by planting nectar flowers. It is by planting host plants for their caterpillars. Many moths can only develop on certain native plants. Females carefully choose where to lay their eggs because the caterpillars need the right host to survive. Some adult moths, including Luna, Cecropia, and Polyphemus moths, do not even have functional mouthparts and never feed, making host plants much more important than nectar sources.
Some excellent native host plants include:
๐ฟ Little Bluestem (Schizachyrium scoparium) hosts grass moths like the Common Grass-veneer Moth (Chrysoteuchia topiaria).
๐ธ Wild Bergamot (Monarda fistulosa) is a host plant for the beautiful Hermit Sphinx Moth (Lintneria eremitus).
๐ผ Evening Primrose (Oenothera biennis) hosts the striking White-lined Sphinx (Hyles lineata) and the Primrose Moth (Schinia florida).
๐ณ Willows (Salix spp.) support over 200 species of moths, including Io Moth, Viceroy Sallow, and many prominent and tussock moths.
๐ Chokecherry (Prunus virginiana) hosts spectacular silk moths including Cecropia, Polyphemus, and Promethea moths.
๐ฟ Serviceberry (Amelanchier spp.) is used by Blinded Sphinx, Small-eyed Sphinx, and many inchworms and leafrollers.
Many adult moths also visit pale, fragrant flowers after dark for nectar. Great native choices include Foxglove Beardtongue, White Snakeroot, Virginia Mountain Mint, Culver's Root, and Evening Primrose.
Even if you never see the caterpillars, they are quietly feeding the next generation of moths and, in turn, feeding songbirds, bats, and countless other wildlife.
Plant for caterpillars first, and the moths will follow. ๐๐ฆ