freeflow wrote:It would be say April to October in Scotland, trying figure if i need a clear one or if plants will get enough light.
Green tunnels will make green light, plants will not like green light.
April to October is the same growing season I have, April 20 to Oct 30.
When sun is low in the sky the atmosphere Blocks out several wavelengths of light, green, blue, violet leaving lots of RED light. Also when sun is low it is less concentrated there is 2 times more sunlight when sun is straight up. Green tunnel will not give plants much light especially when sun is low on the horizon.
My grandmother had a fence around her strawberry patch to keep the geese in. Geese will eat anything but a strawberry plant and a strawberry.
I plant my tomatoes so they get morning sun then shade from a large tree 1pm to dark.