Q.My Camelia Blooms Very Well But Looks Very Sick And Has Stunted Growth And Pale Yellowing All Over ?
I live where my hydrangea blooms are blue and soil is typically acidic in the Pacific NorthWest. Some yellowing on the edges on older leaves.Do you think the yellowing in this Camelia is because of Iron/Manganese deficiency or a root rot problem.I fertilize with Hollytone once every 6 months.What should I do?

Certified GKH Gardening Expert
The first thing I suggest is getting a soil sample to see if it's a mineral imbalance as you suggest. You can do that at your local Extension office. If it isn't that it could be root rot or even yellow mottle leaf virus, but that is more a problem on new plantings. Is there good drainage where it is planted? Has there been a lot of rain recently to encourage root rot? Also check for scale insects on stems and leaves.
Here is more info on these issues:
https://www.gardeningknowhow.com/ornamental/flowers/camellia/caring-for-camellias.htm
https://www.gardeningknowhow.com/ornamental/flowers/camellia/camellia-fertilizer-info.htm