QuestionsHow to growTomatoesGreenhouse Growingtomato seedlings turning white 0 Vote Up Vote Down lorraine ocarroll asked 15 years ago I STARTED HARDENING OFF MY GARDENERS DELIGHT ON A SUNNY DAY BUT THE LEAVES TURNED WHITE AND PAPER THIN.MOST OF THEM DIED.WHAT HAPPENED? THE LEAVES WERE NOT WET BY THE WAY. 1 Answers 0 Vote Up Vote Down Gerry Daly Staff answered 6 years ago The leaves scorched in the strong sunlight. This can happen even when not wet, because they are so soft.