I'm looking for a tree that is shade Tolerant and can provide privacy along a hundred meter or so section of roadside. Currently, there is a patch of deciduous trees that are not cutting it. Any Suggestions?
Evergreens would obviously be good for providing privacy. Potentially a Korean Pine nut? Do they tolerant shade? How long it would take them to get to about 10 feet tall and start providing privacy?
Depending on where you are you might try to at least include silverberry. They supposedly do ok in sun or shade. Although they're related to goumi berries (which commonly defoliate in the winter) they're supposed to be evergreen I believe. They're a nitrogen fixer and should grow pretty fast. I've heard they grow to fifteen feet, but results will vary. I've only seen plants that have been in the ground for a year or so. One friend has his in pretty solid shade and it makes berries here in Washington. In mild climates they'll make berries in the spring and in the autumn their flowers are good bee forage, again depending on your climate.
When you reach your lowest point, you are open to the greatest change.
White pines did well if they get some sun. They don't need much and they are beautiful fast growers. Mine get over 10 feet in about 4 years. They are nice thick trees and start providing some privacy with a couple years if you plant a staggered row of them.