painting the wall white or silver
Is there any mileage in this idea?
I have a large walled garden ( a very large, tall stone wall that faces South -along with the other 4 sides.
Can I use this South facing wall , along with the South end of either the East or West walls to reflect additional back and side light onto crops during the winter (say by painting the stones or covering them with something reflective) and so prolong the growth period of some crops?
Or would this really be just a technique that would work in an indoor , more controlled environment?