We have concrete under the soil in our side yard (maybe 2' deep...we think it was a driveway from 1950's) (ODOT buried it when they built I-90) the property has open Northern Exposure near Lake Erie (Rocky River Ohio) we want to plant four of the Hick's Yews at the base of a hill about 12' behind Black Locust trees (3) . We lost four hemlocks that we planted in this area and the nursery said the soil was too Alkaline (7.3).....should I try to plant the yews? (I could make a planting "hill" if they would tolerate the wind and not have their roots smack into the concrete.) It is dense shade because of the locust trees and trees on the hill to the south of the proposed planting area.