Concentrates has been serving Portland & PNW farmers, gardeners, and industries with organic and conventional feeds, fertilizers, salts and commodities since 1938. We are family owned and have expert friendly staff just waiting to talk with you.

We Have Seeds!

We are happy to carry Seed Savers Exchange, which is a non-profit organization based near Decorah, Iowa, that preserves heirloom plant varieties through regeneration, distribution and seed exchange.

Many of SSE seeds are certified Organic by the USDA. Come pick out your favorite varieties or try some new ones!