Single-Herb Tinctures Oat Seed PreviousNettles NextPassionflower Oat Seed Oat Seed from $12.99 Milky Oat seed (Avena sativa) is the seed of the common oat plant harvested in the “milky” stage. Size: Select Size 1 ounce2 ounces 1 ounce 2 ounces Quantity: Add To Cart Facebook0 Twitter LinkedIn0 Reddit Tumblr Pinterest0