Page 33 - Tài liệu Ebook cây cảnh Bonsai Basics

OBTAINING YOUR BONSAI 35

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A wedge will raise the sheet of glass enough to Seedlings planted out in a nursery must be protected
permit air to circulate and prevent condensation. from direct sun.

remain above lOOC (50°F) and there is no
night frost, simply stand on a balcony.
T here is normally a risk of frost in
temperate zones from late autumn, and
so seeds should then be taken in and
stood in a cool place near a sunny
window. Make sure that watering is
frequent enough if the room tempera-
ture is warm and the atmosphere dry. It
may be necessary to stand the container
in water regularly once the seeds have
sprouted.
Once you have sown your seeds, you
will need a great deal of patience, since
most tree seeds take several months to
When seedlings sown in trays have developed, they
must be planted out. germinate. Some may not even sprout
until the following year!
with compost should be watered from In every case, regular watering and a
below by standing the container in a tray constant temperature will increase your
containing water until the compost is chances of success. Even before its birth,
saturated. Be careful that the water the embryonic bonsai demands com-
which rises by capillary actio n does not plete devo tion!
disperse the seeds when it reaches the
surface.
A propagator is an ideal container: Initial care
keep the pots in it in a shady place at a Germination is followed by the rapid
temperature of 15-2o·c (60- 70.F). development of the young plant which
Trays and bowls should be covered with q uickly develops roots, loses its seed-
a sheet of glass, leaving one corner open leaves and produces true leaves. But the
to let the air circulate, to limit evapora- seedling remains fragile and so a watch-
tion and to keep the soil surface at the ful eye should be kept o n it. Make sure
right temperature. If you do not have a the moisture level is adequate to keep
sheet of glass, stand the containers in a the plant growing but not excessive, so
frame or, if the temperature is likely to it encourages fungal disease, such as