My curiosity poll today⊠Which school of thought are you in: A) When a leaf is dying off, itâs best to cut it off to avoid the plant expending excess energy on that leaf anymore, and also thus avoiding any fungal issues etc etc that might be spread to other leaves. B) When a leaf is dying off, itâs best to leave the leaf on until itâs completely shriveled up, dry and brown, to allow the plant to re-absorb all of the nutrients from that leaf for the rest of the plant to use.