Spots on upper leaves. Outdoor plant

I think you might need some pest control, something is sucking the chlorophyll from the leaves. In such cases, yellow sticky traps can be useful, along with predatory mites against spider mites, ladybugs, etc. Check the underside of your leaves; there are many types of pests outdoors. You'll quickly notice the stink bugs and larger sap-sucking pests; shake them into a container, or in the evening, after a leaf test, spraying with a mild concentration of insecticidal soap or a heavily diluted amount of onion peel juice can help.