We moved into our home in South Jersey approximately 5 years ago in late fall. The next fall I planted two white dogwood and one pink dogwood. We live on a one acre property among a dense cover of scarlet oak and white oak, and several holly and pitch pine. The dogwood were 3-4 feet tall when planted. The white dogwood bloomed (approximately 3-5 blooms per tree) the first spring, but have failed to bloom for the past three springs. The pink dogwood has had only 1-2 blooms each spring. Our soil tends toward the acidic. I use shredded oak leaves for mulch. I do not feed the trees. The white dogwood were planted near a dense pachasandra ground cover. DO you have any ideas as to the problem? Trees show new growth each year and appear healthy, but the lack of blooms is disappointing. Thank you.