Forget-me-nots are susceptible to two diseases: powdery mildew and rust. Powdery mildew is that light-colored, powdery covering on a plant's leaves. Seldom fatal, it temporarily ruins plants' ...

Invasive forget-me-not plants have delicate, blue to white blossoms with five petals, clustered at the end of branches. The plant is native to Europe and Asia, and an example is seen here on July ...