"paghat" wrote in message newsaghat-
Overwatering during hot days is not the answer to leaf scorch, & risks
damaging the roots which tolerate droughtiness better than overwatering.
They are semi-shade plants; leaf-scorch usually means they're simply
getting too much sun. If a sun-loving shrub can be planted in the way of
where the sun reaches a camellea during on the hottest month, that can be
enough to change the daily sun to shade ratio in its favor & protect the
leaf appearance. I have two in bright shade that bloom extremely well with
almost no direct sunlight at all, & one in rather a greater amount of
direct sun morning only which also blooms well & never gets scorched.
There doesn't seem to be a preference for bloom power, but for safety
from overheating & leaf scorch is going to make increased shade
preferable.

The solution in the deep south for generations has been to plant camellias
under the high shade of pine trees. This would be a good solution in
California as well.