It can be heartbreaking to see your once-gorgeous camellia tree (Camellia japonica, Camellia reticulata, Camellia sasanqua) ...

This is exactly what this and many other plant diseases need — wet conditions ... Funny looking growth on azalea and camellia leaves | Gardening ...

You may have followed all the right tips for how to grow and take care of a camellia plant, but often it's nothing you did wrong. The most likely cause is flower blight, leaf blight, or root rot.