I was wondering if it's possible to grow leafy greens in complete shade. And I mean total. This time of year my garden goes from 8 hrs of light to 0. I had some lettuce and borccoli doing well on 1 to 2 hours and now it's none. Will they keep going? Could I plant chard or is 0 light a garuntee for failure? I've always taken leeway with reccomendations and been fine, but this is a little more extreme.