'Bob',

Having read this site http://www.hydrangeasplus.com/faq.html
I am of the opinion that (1) your pots are either too small for the
roots to develop properly (2) that the drainage is inadequate or (3)
they are sitting in a heat trap. The latter is probably unlikely. I
favour (2) as being the most likely cause.

Regards,
Emrys Davies.






"Bob H" wrote in message
...
Hi,
we have 2 hydrangeas in pots, on a North facing wall as advised,
since
back end of last year. Now I notice that some of the leaves are going
brown
and brittle.
Is that due to overwatering, underwatering or too much sun/dry
weather?

I have give them and other potted plants a good soaking about 3 days
ago.

Thanks

--
Bob H
Leeds UK