Page 187 - Tài liệu cây cảnh Bonsai4me Bonsai Basics

from the mountains and can reach ages of 200 years or more. Many display large

amounts of natural and artificially created deadwood called jins and sharis which
are bleached brilliant white with lime-sulphur.
Species and varieties suitable for bonsai
The classic Juniper for bonsai is often referred to as the Chinese Juniper.
This is a naturally occurring hybrid species called Juniperus x media which is a
cross between J.chinensis and J.sabina. (Confusingly Juniperus x media is also
referred to in some textbooks as Juniperus pfitzeriana).
The foliage can have a mixture of adult and juvenile foliage and as this
combination can disrupt the design of a bonsai, so varieties of J.media that
display only one form of foliage tend to be used. Juniperus x media 'Blaauw'
(named by a Dutch nursery 'Blaauw & co') is a strong growing conifer which
carries bluish grey-green scale-like adult foliage. As with other J. x media, if
needle-like juvenile foliage appears it can be pinched out until adult foliage
appears.
Another very popular species for bonsai is Juniperus rigida, the 'Needle
Juniper'. As the name suggests J. Rigida has sharply pointed needle foliage as

has Juniperus communis a plant found growing wild in many parts of Europe,
though it should be noted that collected J.communis is notoriously difficult to
keep alive for more than 2 or 3 years after collection.
Juniperus squamata (needle foliage), J.sargentii (scale foliage), J.chinensis,
J.Sabina, J.horizontalis procumbens, J.communis hornbrookii are also popularly
used as are dozens of other species and varieties.
Other Juniper varieties often used for Bonsai
Shimpaku or J. sargentii
The Shimpaku is a Chinese Juniper variety with bright green new foliage that
fades to a darker green when mature. The tree has naturally dense and compact
foliage which is excellent for bonsai.
As with a number of Juniper varieties, the foliage can turn a brown or bronze
colour after frost and will remain so until Spring when it turns back to a more

familiar (and healthy-looking) green.
Blaaws Juniper or J. x media 'Blawii'
The Blaaws Juniper is more vigorous than the Shimpaku but has less
naturally well-ramified growth. In comparison, the green foliage has a blue-grey
tint.
Sabina Juniper or J. sabina
Common to Europe and similar in colour to the Shimpaku, the Sabina has
looser but finer foliage that requires continual pinching out to encourage
ramification.