Apium Graveolens
Celery Light Green (Chinese Celery) this Asian style celery can be eaten raw or cooked. It is ideal to use in soups, stews, stir fries or salads. The leaves can be dried and used in Winter. 
It can be harvested repeatedly during the growing season. It can be used as a micro green if harvested early (30 days) or it can be left to reach full maturity (60 days approximately).
Easier to grow than common Celery