I am a new gardener who just planted two beds of marigolds. (French variety). It's been a week, and the petals have shriveled up and turned a dark yellow. There are also teeny-tiny black spots on some of the petals. I've been watering every day, because it's very warm here, and I wonder if I am overwatering?
I didn't put anything special in the soil, so I'm also wondering if that could be problem. Any experienced gardeners out there who can help? Thanks so much!