4/2/08 2:35 PM
chrisbarown wrote:
Contrary to this article, Cornell University recommends that you plant the tree with the bud union 2 to 4 inches above the ground.From Cornell:
The depth of planting on rootstocks influences subsequent tree growth. As more of the upper rootstock is left above ground at planting (i.e. the shallower a rootstock is set in the ground), the tree's ultimate growth is reduced. On the other hand, if the graft union between scion and rootstock is buried, the scion itself will produce roots, and the rootstock's size-controlling effect will be lost-resulting in a very large and vigorous fruit tree. Usually it is best to have 2 to 4 inches of the upper rootstock above ground when the soil has settled after planting.
