3 Week Update:
New roots have formed on the example onion used in this Instructable, and the starts of leaves are forming which can be seen by the two distinct rises at the top of the onion. This onion will more than likely form two plants just like fully formed example on this Intro page.
4 Week Update:
New leaves are forming above the soil, and it's clear that this plant will be able to be divided. It has now gone through a hard freeze in its pot sitting on a growing table.
Step 1: Materials
- Clean Knife
- Cutting Board
- Starter Pot with Potting Soil (optional)
Step 2: Slice Off Onion Bottom
Allow to dry for a few hours to a couple days in a shaded, well-ventilated area to allow for callousing.
Note: You might only need a few hours for callousing. If the cut portions are dry to the touch and slightly shriveled, it very well might be calloused enough.
Note: I'm skipping the dry time for this Instructable.
Step 3: Potting
Create an indentation in the center to cradle the onion bottom and allow for good soil contact.
Cover with 1-2" of soil.
Water as needed.
Note: You can skip the starter pot if you can't be bothered and plant it directly in the ground.