Mirrors in a greenhouse

Two threads about mirrors, please put replies in the relevant one :)
This one is Mirrors in a greenhouse
The other is Mirrors in the garden

I was thinking while I was working about using mirrors in a greenhouse to bounce the light around, and make the space feel bigger. I saw a conservatory once that had a diagonal black and white checkerboard floor done in very shiny tile, and they had mirrors the same size on the diagonal, going up the walls to match the white tiles, the wall itself was painted deep blue. The effect was amazing and elegant, and all the potted plants were reflected and it was an awesome design.

I think if I did it to the north wall of my planned greenhouse, it would be cool to make fake arches with mirrors between them, made to look like space behind a trellis. My quick sketch of what I see in my head:



i think it would really make a greenhouse look neat to be mirrored!

Have you ever used mirrors in a greenhouse?

It sure could help you get the light down deeper into the earth in a wofati greenhouse!

I haven't used mirrors (yet!) in a greenhouse, but for some reason all that came to mind for me is a funhouse hall of mirrors built into a greenhouse...."I can't pick the darned lemon!!!"

I think mirrors above/behind  the greenhouse could really help.
If we are willing to move more mirrors,  a reflector could be built for the east and west of the greenhouse.
In the mornings, the eastern surface of the western reflector would catch sun that would otherwise be "wasted", redirecting it towards the glazing on.the south of the greenhouse.
Around noon, we would move the reflector to the east  end of the greenhouse, face the mirrored surface to the west and redirect the afternoon sun to the southern glazing.

A Chinese style greenhouse could have  an insulated shutter, kind of like  an upper eyelid.
If you put mylar on the inside of the shutters, it could be a radiant barrier when closed and a reflector when open.

A friend of mine insists that although light coloured walls in a green house are a good thing, mirrors are a bad thing. I don't know where she learned this, but I thought it was that light walls would bounce the light in multiple directions, whereas a mirror would reflect it precisely. I'm sure someone taught her this, likely her dad, but I have no idea if the person who did so had it right or not. I"m wondering if they were worried about a fire?

However, quantity might matter also - small bits as highlights is different from large sheets.

11 years and a couple houses ago we added mirrors to the living room.  The living room was relatively dark paneling with a ceiling that was 6 inches lower than normal.  We added 1 square foot (30cm X 30cm) mirror tiles around the top of the wall.  It made the room feel bigger.  It also brightened up the room noticeably without spending any more on lighting.
I would think it would have a similar effect on a greenhouse.