Page 37 - Tạp chí bonsai cây cảnh BCI 2016Q1
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efore starting to write this, we checked the
                 Internet to see if someone else had written
                 about a Brazilian pepper tree bonsai. We
                 found a few articles on bonsai, but mostly
       Bfound a lot of curse words aimed at non-
        bonsai pepper trees. Going by other names such as
        Hawaiian Christmas tree (because of its red and green
        berries), it is condemned as an invasive species that
        grows to be 30 to 40 feet tall and is hard to kill. In
        the U. S., the tree is invasive in California, Texas, Ala-
        bama, and Florida. New trees spring up from roots,
        new plants grow under the canopy where the seeds
        fall, and old trees may put out new plants until they are
        completely killed by chemicals. It is a serious menace
        in Hawaii where it crowds out the native species.
          The Brazilian pepper tree is not to be confused with
        the California pepper tree, Schinus molle (Peruvian
        pepper tree from the Andes in South America). It, too,
        was imported as a decorative tree and also became
        invasive.
          The tree trimmers use the California method of
        topping, and that just causes the tree to grow more
        rapidly.
          Shown top right is a branch structure that resulted
        from topping and removing lateral branches. The tree
        needed to be left alone to develop a mature branch
        structure that could be very lightly trimmed to re-
        tain a smaller size. Both of the authors have trimmed
        well-kept Brazilian peppers without starting them
        into massive growth spurts. Once the trees start rapid
        growth, most arborists cannot keep from trimming
        them long enough for them to slow down and return                                        Top; The tree trimmers use the
        to a more lateral set of branches. Obviously this tree                                   California method of topping,
        should not have been planted in that location because                                    and that just causes the tree to
        there is inadequate room for lateral development. Un-                                    grow more rapidly. Here is the
        fortunately, land developers want immediate greenery                                     branch structure that resulted
                                                                                                 from topping and removing
        and ignore the long term consequences.                                                   lateral branches. Obviously
          Well developed nebari (exposed roots at the point                                      this tree should not have been
        where tree meets ground) are sought after as they indi-                                  planted in that location
        cate stability of the tree. Old, textured bark is prized by                              because there is inadequate
        bonsai enthusiasts as an indication of age. This mature                                  room for lateral development.
        tree provides excellent examples of both. Old Brazilian                                  Bottom; Old, textured bark is
                                                                                                 prized by bonsai enthusiasts
        peppers growing on their own may have dead sec-                                          as an indication of age. This
        tions, but this must be approached with care in bonsai.                                  mature tree provides excellent
        In bonsai as well as in full grown trees, old wounds                                     examples of both.
        on trunks and branches may die back and rot in the
        center, creating interesting blemishes.
          The nebari are not well developed all around the
        tree. Nor is that unusual for trees grown in the ground.
        It takes extra effort to develop nebari. The bark is evi-
        dence of its age, at least 35 years as of 2015. There are
        a few berries sprinkled on the bark but they do not
        do justice to the ends of the branches that have full
        loads of berries.
          The trees can grow in poor soil with relatively little
        water. San Diego, California, is classified as a desert,
        receiving less than nine inches of rain in a year. Its
        soil is cobble, a mix of sand, small and mid-sized
        stones, and is watered no more than necessary to
        keep the grass green. As water becomes scarcer in

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