How to Propagate white alder 'Ruby spice'?
Propagate by division of suckers, by heeled semi-ripe cuttings of lateral shoots in summer, or by layering in late autumn or early spring

white alder 'Ruby spice' · Clethra alnifolia 'Ruby Spice'
Grow in humus-rich, moist, well-drained, lime-free soil in dappled shade, in the shelter of an open woodland garden or a lightly-shaded shrub border; after pruning, mulch with well-rotted leaf mould
Propagate by division of suckers, by heeled semi-ripe cuttings of lateral shoots in summer, or by layering in late autumn or early spring