Seeds exhibit seed coat and embryo dormancy that requires a two-stage stratification to be broken. Highbush Cranberry is a seed banking species. Vegetative reproduction by layering and sprouting from damaged root stocks, stembases, and stumps. 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.