Actually, it's just a guide to the BEST times to do things, in the garden, by 'the moon'. Farmers have loosely gone by this method for years. I would imagine that if you lost any or all of your garden, at any time..........the fault could be attributed, MORE, to the gardener's attention and ability, than to the moon's phase.......At least that's the way it has, ALWAYS, "played out" for me.