Growing onions from bottom cuts (to be updated)

In the beginning of 2016, I've tried to regrow onions from the bottom cuts, although I am still trying to grow a full bulb -- or initially, a flower head -- I do have some thoughts and experiences learned so far.

This post would be tracking one bottom that only re-grows into one bulb.

Steps

1. Cut bottom from root about 1 or 2 cm.
2. Let the bottom dry for a day or two until you can see the rings separate.
3. Plant the bottom, the cut surface just at soil surface level.
4. Dig up and separate each new onion when big enough, then replant.

Thoughts

• Each set of rings grow into one onion.
• Cut each set of rings into section, so you don't need to separate later onion, if want to grow into bulbs. Need to experiment.
• Without drying, it seems to have higher rate to fail.
• Separation could damage if inexperienced.

Example (ongoing)

May 11, 2016, planted after drying, you can see separate rings. This bottom only has one set of rings.

May 19, 2016, 8 days after planting, the green is a few cm tall.

May 23, 2016, 12 days, 13 cm.

To be updated.