Every autumn, the scene repeats itself: a fig tree covered with still green fruits and, underneath, a gardener who hopes for a last ray of sun. Nights are fresh, the leaves are yellowing... but the figs remain firm. Our elders had a simple rule: past a certain cold, a green fig never ends to ripen on the tree. To know it today allows us to decide, without regret, when to stop waiting. Green figs in October: what the ancients knew about the cold …