David J Bockman wrote:
For those areas where the vegetative 'hooks' cannot find purchase, the plant
excretes calcium carbonate at the ends of small aerial roots along the woody
stem that can.

Dave

"Alexander Pensky" wrote in message
...

Pam / Dave:

In your experience does climbing hydrangea need a porous wall surface
like brick, or real wood shingles, or can it grip a smooth surface, such
as siding? I am trying to grow it on the side of a garage which is made
from painted siding made of compressed wood pulp. This is the first
year and it's only gone a few inches up the siding, so I can't tell yet
if it is going to hold fast or not.

- Alex


Thanks Dave, it sounds like I'm all set then. I have 3 little two-foot
vines started about six feet apart along a 22 ft. northwest-facing wall
(gets a lot of afternoon sun). I'm hoping within 5 years or so I have
something really nice looking. I'm going to go without the trellis,
since I rarely if ever expect to need to repaint that wall.

- Alex