How to Propagate sneezeweed 'Double Trouble'?
Propagate by division in autumn or spring, or by basal softwood cuttings in containers in a cold frame in spring

sneezeweed 'Double Trouble' · Helenium 'Double Trouble'
Grow in full sun in fertile, moisture-retentive, humus-rich soil, and provide support for the tall stems; divide every two to three years to maintain vigour
Propagate by division in autumn or spring, or by basal softwood cuttings in containers in a cold frame in spring