Although the area where I live is famed for it's white pine they grow in sandy soils. My garden has a thin skim of topsoil over six feet of compact alkaline (ph 7) clay.
My dwarf white pine is doing so poorly I think I may have to replace it. Are there any evergreens aside from cedar that will tolerate alkaline clay with full sun?
Climate USDA zone 4 with lows to -30 degree Celsius and highs of +30 deg Celsius, full sun, large greedy cedar hedge close by, southern exposure
2022 Edit: a better phrase for the soil I have is "Marine Clay". The White pine succumbed to a white scale type insect. Deciduous shrubs have done much better. The evergreens that have done well are Taxus (Yew), Thuga (Cedar) and Tsuga canadensis (Hemlock)