To grow an onion root tip in soil, follow these steps after the roots have started to sprout:
- Check for Root Growth: Let the onion sit for 3-4 days and check if small, white roots are starting to grow.
- Prepare the Pot: Fill a small pot halfway with potting soil.
- Plant the Onion: Place the onion root end down in the pot.
- Cover with Soil: Fill the rest of the pot with soil.
- Water: Thoroughly water the onion cutting.