Diabolorent wrote: I read that you need to tie the stems when they turn yellow 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 just one of those wacky things our mythomaniac man has to piss off and conclude that "luckily he did this or it wouldn't work!"
Because they explain to me how the substances, formed in the leaves by photosynthesis, manage to swell clays if we tie 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", we must try "all things being equal".