Spore BankSpore BankCalifornia Sea Grant
← Seed bank directory

GreenWave — kelp hatchery, seed bank and nursery

New Haven, Connecticut, with California program work · Out of state

Tier: registerednonprofit

What they do

GreenWave runs a commercial-scale kelp seed bank and nursery, revamped in 2022, producing gametophyte cultures and seeded twine using next-generation culturing methods. It has worked with The Nature Conservancy's California program and Hog Island Oyster Company on bull kelp cultivation strategies to support California restoration and farming. GreenWave also publishes a nursery manual and runs a kelp hatchery training course covering gametophyte culturing, sorus processing, and culture media. For California operators it functions today mainly as a technical-assistance and training source.

Seed offerings

SpeciesSeed formStatusSeason and lead time
Bull kelpgametophyte cultureSeasonalAvailable through partnership and training programs; out-of-state provenance.
Bull kelpseeded twineSeasonalProduced for pilot projects with California partners.
Winged kelpgametophyte cultureSeasonalNortheast strains; not appropriate for California outplanting.