Radish Seeds, OrganicRadish Seeds, Organic Radish seeds have a slightly hot, radish type bite so they are often sprouted with alfalfa and clover sprouts for a little more zing in sprout salads. Seeds for sprouting should be soaked prior to sprouting for 5 minutes in warm water of pH 6 7 with household bleach at the rate of 1 1 2 cups bleach to 5 gallons water. Seed not sold for direct human consumption.