I have two climbing hydrangea that I planted facing west (afternoon sun) against a railway tie retaining wall. I did this because the tag on the plant said to plant in full sun and I wanted to hide the retaining wall. Some of the leaves are starting to turn brown. Are they getting to much sun or could they be absorbing creosote from retaining wall? LeonaS
it's most probably a combination of both too much sun and the creosote on the wall. usually hydrangea should be put in a somewhat shady spot. the climbing varieties - which i do not have - could be different though. are the leaves brown as in dried out & dying or brown as in rusty-looking?
