Page 89 - Tài liệu Ebook cây cảnh Bonsai Basics

CHOOSING A BONSAI 91

Bambusa 1•entricosa makes an original indoor bon- Having trimmed back the smaller shoots it is time to
sai. Here a shoot is being pruned. tackle the ma.in subject.

T he bamboo after its branches have been pruned and Pinching out young bamboo shoots in spring.
its leaves pinched back.

Care of indoor bonsai age holes should be big enough to pre-
Apart from needing the best possible vent any waterlogging which could cause
growing conditions (such as good light root rot.
in a warm, draught-free position away Do not use organic fertilizers as for
from direct heat), indoor bonsai need outdoor bonsai, but use liquid fertilizers
quite different attention from their out- like those recommended for ordinary
door cousins. houseplants. Because bonsai containers
Most require repotting every two are shallower than normal indoor plant
years, preferably in spring. They can be pots, dilute the fertilizer further to avoid
potted at other times of the year, but it is any risk of concentrated liquid damag-
best to provide some bottom heat to ing the roots.
encourage re-rooting. Repotting should Feed indoor bonsai with fertilizer in
be accompanied by root pruning (1 to ~-, small, frequent doses (about once every
depending on growth). As with outdoor three weeks), but do not feed in winter,
bonsai, try and stick to the same shape unless the tree is being kept warm and is
container, but of larger size. The drain- still growing vigorously.