Growing Onions Inside A Water Bottle In Your Kitchen Is Actually Pretty Simple
The article explains how to regrow [[green onions]] and grow [[onions]] indoors using a cut [[water bottle]] or a DIY [[plastic bottle]] tower on a sunny [[windowsill]], making it accessible for beginners without garden space. It outlines step-by-step: save an inch or two of the white bulb with roots, place bulbs in the bottle bottom with just enough water, change water every two to three days, and harvest 4–5 inch shoots with scissors; for longer-term growth transfer to [[potting soil]] after a few regrowths. For larger bulbs, use a gallon bottle, staggered holes, and deeper soil layers; keep soil moist, feed monthly, rotate the tower for even light, and harvest when bulbs reach desired size or stems are ready. It recommends regrowing scraps and eventually moving bulbs to [[potting soil]].