Neighbor sprayed "round-up"on her yard getting some on mulch around 6 camellia plants. What would be the first sign of damage? Mulch was removed within 1 day. Plants are well established over 15 years old. Thank you.
If your camellias were affected, they would first start to turn yellow and begin to slowly wilt. Other than removing the mulch, a good dousing with hte water hose should help flush out the area.