Experts and BHG readers answer.
Landscaping under Jack/White Pine
Well sadly, nothing will grow under those pines. Pines and spruces are very dense and between their root systems and the falling needles, nothing can really grow beneath them. If it were me, I'd leave the needles in place as a mulch and just take out the dead branches as they fall. With trees like this, you'll need to adjust to a more natural looking landscape.