I recently came across this topic on both Facebook and Pinterest, so I had to learn more. (Who knew that celery proliferation was all the rage?) 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.
Here are a couple of examples:
• Tim and Mary at 17 Apart planted the celery indoors – in a repurposed steel cut oats container! – and share some great step-by-step photos and tips on their site. (The industrious couple has also re-grown bok choy, sweet potatoes, and green onions.)
• Kara at Ramblings of Handbag Designer planted the celery in her garden outdoors, and it's interesting to see the progression in her first, second, and third updates. Kara did tell us that she had a bit of trouble with pill bugs eating the decomposing celery, and says she might try it indoors in a pot next time.
Have you ever tried this?
Related: Re-Growing Green Onions: Grow Your Scallions Back on Your Windowsill
(Images: Ramblings of a Handbag Designer; 17 Apart; 17 Apart; 17 Apart)