Watermelon leaves turning yellow
I have some small varieties of watermelon growning in big containers. One variety is has all the leaves turning yellow. I planted these in Miracle Grow potting mix. Can anyone suggest a reason that this could be happening? Am I missing any certain nutrient?
If it matters, the variety that is doing well is Cream of Saskatchewan. The one that is not doing well is Golden Midget. They are planted in 2 identical 18 gallon containers.