Two threads about mirrors, please put replies in the relevant one :)
This one is Mirrors in the garden
The other is
Mirrors in a greenhouse
I put mirrors on the wall in my garden at my last home. I had already painted the grubby orange block wall sky blue, then I added some broken mirrors to it.
I can't find any pictures of it that I took once the flowerbed grew in, it looked lovely, gave a narrow space a surprising depth and more flowers in bloom. (I know I took some, I'll look for them later.) They opened up a shady area, the wall got sun when the rest of the area didn't, they bounced the light around nicely. The irregular depth, the reflected flowers and the light were a lovely effect!
Have you used mirrors in your garden? How did it work?