It’s apparently quite simple: just stand the base in a small dish of water for a week or so until new leaves appear in the center. The leaves will be yellow at first, and once they really emerge and turn green, you can plant the celery in the ground or in a pot.
My celery does great in a glass of water, but when I put it in the pot with potting soil it dies within 3 days. I’ve keep it in the window sill, I’ve tried putting it on my potting table on the back porch, doesn’t matter. It dies. What am I doing wrong?
Wait till heaps of roots form in the water then plant out. 🙂 maybe waiting an extra week or so.