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a small pine
When I consult or personally transplant any species of tree, I alway follow the rule of 11" of rootball for every 1" of diameter taken a minimum of 6" above the root flare. This way the tree is transplanted with its vigor and future in mind. This ratio is simple to calculate: - 1" diameter x 11" rootball = 11" rootball diameter - 2" diameter x 11" rootball = 22" rootball diameter - 3" diameter x 11" rootball = 33" rootball diameter - 4" diameter x 11" rootball = 44" rootball diameter - 5" diameter x 11" rootball = 55" rootball diameter............and so on!This rule goes along with Harris' recommendations found within the text 'Arboriculture' (1999), where he states, "The diameter of the root ball should usually be 10 to 12 times the trunk diameter (251)."I honestly believe that a 16" rootball for any tree under 5" diameter would be far to great of a risk; the chance of survival and quick recuperation would be slim! When transplanting, the more intact soil the better...............and this is typically determined by the amount of man-power available or the size of the equipment at one's disposal.
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