The leaves on my plants are turning yellow. Sugar Snap peas, watermelon, tomato. The squash plants are crazy healthy though and have true leaves growing along with their cotyledons. The soil is dry and crumbly for about the first half inch or so but below that is it dark and moist, not muddy. Its been pretty warm so I have been watering about every day. Try to do it in the mornings. I have used miracle grow spray thing attached to my hose. The watermelon has its cotyledons and they are also turning yellow and the true leaves are yellow on the just the edges. The sugar snaps have round round leaves but not sure if they are cotyledons, but they are yellowing as well. The stems seem fine.
Not sure what else to do.