Apple tree question
I have a Richelieu apple tree that I planted about three years ago. When planted it was about 2-3 years old and fully branched. I have noticed that it has not put out much new growth since planted AND it seems to leaf out only at the tip of each branch. When it was planted the graft was above ground level, but I spread soil and seeded the area with grass and now the graft is below the soil level. The tree is about 5 feet tall. How do I get this tree to be a "leafier" tree and have more leaves. Is this a sign of some kind of stress on the tree and is there anything I can do. Should I cut the branches back to promote new growth? I have other apple trees (different varieties) that appear more full with leaves, just not this one so is this typical of the Richelieu variety. The tree also sends out blossoms at the tips of each branch, but I am yet to get any fruit from it. I really need advice on what to do with this tree. Thanks.