Celery is thought to be tricky to grow because it can be temperamental when being transplanted.  When transplanting, the seedlings should be at least 3” tall and should look sturdy.  Locate the young plants in a part of your garden that receives partial shade throughout the year with slightly more during the summer months if possible.  Celery can be grown in the full sun, but it is sweeter if partially shaded.  Feed each plant with two handfuls each of our Landscape Mix and worm castings.   Harvest the older, outer stems as you go, this will encourage the plant to keep producing new shoots and will allow for a larger harvest over the season.