The plant is rhizomatous, but there is no evidence of lateral spread from the parent by rhizome or root suckers. Vegetatively by hardwood or softwood cuttings, although softwood cuttings are far more successful at producing roots. Softwood cuttings root sooner and more prolifically in sand than in perlite. Rhizome cuttings also successfully produce roots when planted immediately after fall collection. Seeding may also be used for propagation.
Most successful germination takes place when a warm period is followed by cold stratification.
The seed root emerges and begins growth during the warm period, and the cold period breaks the dormancy of the plumule, which then grows when temperatures become warmer. The time period of these stages is critical but has not been worked out in detail. Seeds may be broadcast sown on prepared seedbeds and mulched with sawdust or sown with drills and mulched with straw. Seedlings may require shading, depending on location. Fertile, moist soils which are neutral to slightly acidic result in best germination.