Page 35 - 2019 01 BSF Magazine_v3
P. 35

BEGINNER TIP:
       Winter Shaping                                                                         REPOTTING



       By Rob Kempinski
                                                                                     People unfamiliar with bonsai
                                                                                     frequently are surprised
                                                                                     when you tell them a bonsai
                                                                                     must be repotted to remain
                                                                                     small and healthy. Yet
                                                                                     repotting is one of the critical
                                                                                     aspects of bonsai cultivation.
                                                                                     Temperate trees need to be
                                                                                     repotted now in the winter. In
                                                                                     fact, the repotting season is
                                                                                     coming to close for most of
                                                                                     Florida. When dormant trees
                                                                                     sprout the buds, it is a good
                                                                                     time to repot. Tropical trees
                                                                                     usually like to be repotted
                                                                                     when the soil is warmer, and
                                                                                     the trees are actively growing
                                                                                     Some trees like Buddhist Pine
                                                                                     (Podocarpus) and Japanese
                                                                                     Black Pine (Pinus thunbergii)
                                                                                     do well with late fall repotting
                                                                                     in Florida.  Learn your
                                                                                     microclimate and the best
                                                                                     time to report and your trees
                                                                                     will do well.

                                                                                     Some tree can take severe
                                                                                     root pruning while other need
                                                                                     a gentle hand. Learning the

       Florida Elm in a semi-windswept style showing the effect of years of winter   requirements of each species
                                       thinning                                      is fun aspect of bonsai.  This is
                                                                                     where BSF member clubs can
       Shedding winter fat in expectation of the summer bathing suit season isn't    help.  If you have a question,
       only for us humans. Late winter is an ideal time to shape branches of         ask a fellow BSF or local club
       deciduous trees. When the leaves have gone, the past year’s tracery of        member.
       twigs and branches reveals itself in all its complex glory.  While bonsaists
       aspire for a mass of finely ramified branches, winter pruning assures next
       year's production of a similar amount of growth.

       Unlike some other forms of art, a bonsai tree can not safely remain in peak
       condition all the time. As the trees grow, they change, adding foliage, girth


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