Plant leaves loosing color, turning white.....
We have a few plants in a small garden. Some of them (Agastache, Morning Glory, Coreopsis) are turning white. The leaves look almost variegated. They all looked great this spring, but as summer hits, they look like they are loosing all green color. All the leaves on these plants are doing it, not just some leaves.
Other plants do not show any sign of it at all. (Coneflower, Zinnias, Lillies, Acanthus), all look great still.
Thanks to anyone who can diagnose this and give me a remedy. I would think it's some soil deficiency.