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Transplanting Trees. Some plants, particularly trees, may betransplanted successfully while young but are more difficult to moveas they get older. Examples of this are the hickory and oaks, which,with the exception of the pin oak, form deep tap roots. The tulips andmagnolias are hard to move because they have few fibrous roots;while maples and elms, on the contrary, have many fibrous rootsand are moved more easily. Junipers transplant more readily whenolder, for they then have a more extensive lateral root system. Season to Transplant, and Preparation or Holes. Large treesshould be transplanted when they are dormant. It may be necessaryto move other material before the growing period has stopped, butthis should seldom be attempted with older trees. Large trees aremoved in winter, and it is preferable to move them when the ground isfrozen. The ball of earth on the roots will then remain fairly intactand there will be a minimum of root loss when moving. Holes for thetrees should be dug with straight sides and with bottom rather convexor slightly rounded. This is much to be preferred to making holesbowlshaped and it permits an opportunity to spread the roots morenaturally than in a hole where the middle is deeper than the sides.A common error in transplanting large trees is that of providing ahole not sufficiently large to receive the roots of the tree without cramp-ing. A hole for a large tree greater than five to six inches in diametershould not be less than eight to ten feet in diameter, and never less thanthree feet in depth. The most common method of transplanting largetrees is the method of cutting the roots down to a ball approximatingeight to ten feet in diameter. Trees transplanted in this way arefrequently subjected to a root-pruning process during the previoussummer, or preferably during the previous year. |
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