Page 170 - Tài liệu cây cảnh Bonsai4me Bonsai Basics
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frost than their parent plants and only need extra protection when temperatures
drop below -10°C. Ensure that after frosts, cuttings are re-firmed into the
compost as frozen compost can lift and create air-pockets.
Hardwood cuttings will show no outward signs of growth until Spring when
tiny buds will start to appear. They can be as late to start growing as May and
until then should be left undisturbed. Hardwood cuttings do not generally begin
to root until after their first flush of growth and unless growth is particularly
vigorous should not be repotted until the following Spring; around 15months
after being originally taken.
Tips For Success
If a diagonal cut is made to the bottom of cuttings, it helps to indicate which
way up the cutting should be planted. The increased surface area of a diagonal
cut also gives an increased area for roots to appear.
Keep humidity levels high for cuttings with leaves as this reduces moisture
loss; however be wary of fungal infestations that enjoy hot, humid conditions
and can kill cuttings.
Remove all dead leaves daily.
Cuttings that have dropped all foliage and have shrivelled are unlikely to
strike; these become a likely source of fungal infection and should be removed.
Always use Hormone Rooting Powder; it contains fungicides and greatly
increases rooting rates.
Take as many cuttings as you can fit in a pot but do not allow leaves to touch
each other.
NEVER be tempted to pull out cuttings to inspect their root growth before
they are ready; it is more likely that you will break very delicate roots which will
result in the cuttings failure
Be Patient !!