"Alan Holmes" wrote in message
...

"Snowflake" wrote in message
ups.com...
I have been given a present of a blue hydrangea because I do not like
pink and the donor says there is a way to keep it blue but cannot
remember how. Any help is appreciated and the plant is to survive in
North of Scotland.

We used to scatter iron files around the plant, and that seemed to keep it
blue.

Alan

Ailsa



Water the plant with Aluminium Sulphate and it will stay blue?