(Hawaiʻi) Hawaiʻi Seed Growers Network: Online store with locally-adapted seeds from local farmers. Mostly edible plants but some ornamental/multi-purpose plants.
(Hawaiʻi) Hawaiʻi Island Seed Bank: Native seeds for individuals wanting to grow them. Online store only. Also provides seed bank services for landowners, farmers, growers and agencies.
(Hawaiʻi) ‘Āina Ola Seed: White & yellow seed packets, usually available at bigger stores / supermarkets.
(Hawaiʻi) Hawaiʻi Island Seed Co.: Variety of native, edible, and ornamental plants. Black & white seed packets sold in smaller local stores such as Island Naturals and Locavore.
(Maui) Maui Seeds: Online store with many tropical seed varieties. Mostly fruits, trees, herbs.
(Oʻahu) UH Seed Labs: Locally-adapted edible plant seeds. (Sometimes available in local stores, for example Garden Exchange in Hilo)
(Oʻahu) Fukuda Seed Store: Online store with a large variety of edible plant seeds, based in Oʻahu, originally a physical store in Oʻahu.
(Oʻahu) Koʻolau Seed and Supply: Mainly cover crops, based in Kaneohe, Oʻahu, can ship to neighbor islands. Call them for orders & appointments.