Hi,

I ordered a climbing hydrangea as well, I haven't planted mine yet, but what I've learned from here and also from reading is, it's a good idea to put some type of lattice in front of where you want to plant it. I know you don't have siding, but I guess it can grow into siding and such, I also hear that it's good to stake some of it down vertically to encourage blooms. If you just let it grow up, it won't bloom is what I've heard.
I hope this helps somewhat, maybe others will respond too.

I've decided to plant it at the base of the wall and let it climb. If it looks like it will damage the integrity of the mortar as it climbs, I will just have to remove it. I can always take cuttings to perpetuate the plant before hacking it down, if it comes to that . . . thanks for the input!

warren leach, most knowledgable fellow and owner of tranquil lake nursery, told ne no worries for growing up my chimney.this has proven correct.
best,
mindy