How to Propagate lupin 'Blacksmith'?
Propagate by basal stem cuttings

lupin 'Blacksmith' · Lupinus 'Blacksmith'
Grow in moderately fertile, humus-rich, light, moist but well-drained soil in full sun or light, dappled shade. May require support (see staking perennials)
Propagate by basal stem cuttings