Certain species, such as the yellow bush lupin (L. arboreus), are considered invasive weeds when they appear outside their native ranges.
In New Zealand, L. polyphyllus has escaped into the wild and grows in large numbers along main roads and streams on the South Island.
A similar spread of the species has occurred in Finland after the non-native species was first deliberately planted in the landscaping along the main roads.
Lupins have been planted in some parts of Australia with a considerably cooler climate, particularly in rural Victoria and New South Wales.

Lupins are important larval food plants for many lepidopterans (butterflies and moths).
These include:
Aricia icarioides missionensis (Mission blue butterfly), larvae limited to Lupinus
Callophrys irus (frosted elfin), recorded on L. perennis
Erynnis persius (Persius duskywing)
†Glaucopsyche xerces (Xerces blue)
Glaucopsyche lygdamus (silvery blue)
Plebejus melissa samuelis (Karner blue)
Erynnis persius persius (eastern Persius duskywing)
Schinia sueta, larvae limited to Lupinus
Certain species, such as the yellow bush lupin (L. arboreus), are considered invasive weeds when they appear outside their native ranges. In New Zealand, L. polyphyllus has escaped into the wild and grows in large numbers along main roads and streams on the South Island. A similar spread of the species has occurred in Finland after the non-native species was first deliberately planted in the landscaping along the main roads. Lupins have been planted in some parts of Australia with a considerably cooler climate, particularly in rural Victoria and New South Wales.
Lupins are important larval food plants for many lepidopterans (butterflies and moths). These include:
Aricia icarioides missionensis (Mission blue butterfly), larvae limited to Lupinus
Callophrys irus (frosted elfin), recorded on L. perennis
Erynnis persius (Persius duskywing)
†Glaucopsyche xerces (Xerces blue)
Glaucopsyche lygdamus (silvery blue)
Plebejus melissa samuelis (Karner blue)
Erynnis persius persius (eastern Persius duskywing)
Schinia sueta, larvae limited to Lupinus
Lupinus