all container plants have white spots--help!
at the beginning of the spring, all of my lovely plants were flourishing. all varieties of my sunflowers, herbs, zinnias, mint, dahlias, beans, squash, etc. a month ago i noticed that my plants weren't doing as well, pale leaves and now all of them have white spots! did they all catch a disease or is something wrong with my soil? do they need more nutrition or fertilizer? i have been using organic bone meal as fertilizer instead of "miraclegro" because i have been trying to go organic. also, my roof deck is extremely hot and full sun for more than 8 hrs a day. i water my plants in the mid-morning every day (otherwise, it is too hot and they all wither and die). does anyone know what these white spots are and why my plants aren't growing anymore??