Hello everyone. I live in TX, I believe we are in zone 9 or 10. I have a couple of variegated hibiscus (mix of red, green, yellow & white leaves). On one of the plants, the leaves are turning mostly green. I don't know what I did to remove the variegation. Does anyone know if the variegation can be brought back? I called my local nursery where I purchased the plant and so far they have no idea of how to fix it. If anyone has any answers, I would greatly appreciate it.