What colour is best for a microclimate?
I am building a fence in my garden, one side will have dahlias planted in the bed by it, and be painted black to really show off the flowers. The other side will be near the greenhouse, and I want to use it as shelter for hardening off plants. My question is, what colour would be best to paint it, black or white? White would obviously increase light levels, but black would store heat to release over night, keeping the plants warmer. The greenhouse side of the fence faces east, and gets some sun for most of the day.