Hanging / Storing Onions

It is recommended that you leave some leaves on allium flower bulbs which feed the bulb as they die back, this is possibly where the idea of not bending over the onion leaves came from, and unless someone has hard scientific proof, how can we say what Broadway says is right or wrong, personally I think doing it is too much faff so will be harvesting and drying as I have always done, bending the leaf over and hoping for enough warm sun to dry for storing

I don't have hard scientific evidence but I think most plants retrieve any nutrients from their leaves as they die off. Bracken definitely does as it turns brown, any nutrients are returned to the roots for use the following year, same with trees. Likely most plants do including onions. I let the onions die off somewhat before lifting and drying. Mine are still looking green at the moment but should start to ripen soon I hope, bedford champion sowed 10/01/21. Daffodils should be allowed to die down before mowing to strengthen the bulbs for next year.

This article is a bit complex but seems to say that the trees studied reabsorb some of the nutrients before parting with the leaves with varying efficiencies.

https://www.sciencedirect.com/science/ar...2706001319

and this one suggests plants move nutrients about the plant to where they will do the plant most good, which in Autumn would be the bulb.

https://www.waldeneffect.org/blog/Nutrie...in_plants/