Answer: I think I would be more than just a little alarmed with the situation. Established plants should be able to cope with natural rainfall and even if they are stressed their root systems should be strong enough that most plants will recover. When all the plants are affected, it points towards some kind of pollution of the water or soil. If your county has a soil or water conservation district, you might want to contact them. Just for comparison, check the neighboring landscapes to see if theirs are as affected as yours. You might even want to have your soil tested to see if there are any concentrations of any specific minerals. Hope you can solve the mystery!
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