Are sunflowers toxic?
So, I'm delighted that my sunflowers are 2-3 ft. tall and healthy. I have some basil, parsley, and tomatoes growing adjacent. A friend was touring the garden and said, "Dude, you need to move that stuff. Sunflowers give off a weird toxin and things growing too close will die."
Help? I'm a relatively newbie. Is my friend true? Should I move the plants?