Celery Seeds (Apium Graveolens) are the tiny brown seeds from the head of the celery plant. They add the flavor of fresh celery and can be used when ever celery would be called for. Use sparingly, over use of the seeds can result in a bitter flavor. Celery dates from the 17th century; it was developed from wild celery that was found in the salt marshes of Europe. Celery Seeds are often ground and mixed with other spices to make a seasoning used on meat before grilling.ÊSuggested Use: Ground Celery Seeds can be mixed with salt to make Celery Salt. They can also be sprinkled on salads and cooked vegetables prior to serving. Ground Celery Seeds add a wonderful savory flavor to soups and stews. Ingredients: Celery seeds. Basic Prep: Ready to use, add as required by recipe.