Diabolorent wrote: I have read that you need to tie the stems when they are yellowing to promote the concentration of sap in the heads of the garlic.
Is it the same for onions and shallots?
I propose to try: half knotted / half not tied!
I'm willing to bet it's one of those wacky things our mythomaniac man does to piss off and conclude that "fortunately he did this otherwise it would not work!"
Because they explain to me how the substances, formed in the leaves by photosynthesis, manage to inflate clays if we knot the stalks ???? It is the mythical and arch-false belief that a plant grows by its roots !!!!!!!!!! In short, it is for those who do not know that Tillandsia exist ...
There, it's just an opinion, mine. "Scientifically", one must try "all things being equal".