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Cũ 05-15-2008, 02:11 AM   #1
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Default Bonsai



Một vài hình ảnh đẹp Bonsai






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Cũ 05-15-2008, 02:12 AM   #2
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Default Creating a Bonsai


Have you ever visited a nursery or garden shop and seen very small trees growing in shallow containers- These miniature trees have all the characteristics of larger, mature trees, but never seem to grow. They are created by a specialized horticulture technique called "bonsai". Bonsai comes from two Japanese words meaning "pot" and "to plant". It is an art form that comes from an ancient oriental culture which originated in China and was later acquired by the Japanese. In the 13th century, the Japanese collected mature trees which had been naturally dwarfed and placed them in containers, thereby creating the first bonsai.
Today, techniques have been perfected so that anyone can create a bonsai. Plants for bonsai can be collected from the wild, or propagated from seeds, cuttings, or grafting, in addition to being purchased from your local nursery. When looking for a suitable plant, choose one that is well rooted and well branched. All parts of the bonsai should be in proportion with the size of the tree. Therefore, it is important to choose a plant withsmall leaves orneedles


If a large-leaf plant is used it may appear out of balance. Some plants that have characteristics which make them suitable for bonsai are:pine,juniper, cedar, bald cypress, elm, pyracantha, willow, citrus, hibiscus, jacaranda, orchid tree, and royal poinciana. Consider the tree's natural form before you decide on the shape of the bonsai. The four bonsai styles are upright,slanted, cascading and semicascading. After you determine the existing form of the tree, select the style that will fit it best.
The basic procedures for creating a bonsai are pruning, pinching, wiring, potting and repotting, so after you've selected your plant you can begin shoot and root pruning. By pruning you can shape the plant, control growth, and remove ugly foliage. In most cases, the tree will only need one heavy pruning to develop its shape. After this pruning, pinching back the new growth is done to complete and maintain the shaping process.




The root system should be pruned gradually, reducing the root system over a period of years. Prune roots at the same time that you prune the shoots so that the bonsai does not become root bound. The surface roots should be left intact.
Wiring is next and it is this, together with the bending of the branches that makes the art unique. Wiring is done after the tree has been pruned to its essential branches. Copper wire is flexible and is usually used for wiring. Evergreen trees should only be wired during their dormancy so that the new growth is not damaged. Deciduous trees should be wired during their growing season. Begin wiring and shaping at the lowers part of the tree and work up. Don't wrap wire tightly since it could girdle branches and trunk. After wiring, the plant is shaped by hand by gradually bending the trunk and main branches in the desired position. Remove wires before the bark becomes constricted and ridges form.


Bonsai should be grown outdoors or in a greenhouse. They should never be kept indoors for more than a day or two or in air condition or heated homes for more than a few hours except during extreme weather conditions. They need protection from low temperatures and drying winds and should be brought indoors when temperatures fall below freezing.
Bonsai require the same care you would give any other pot plant. Water when the soil surface feels dry, apply fertilizer sparingly and control insects, diseases and other pests. Although making and maintaining a bonsai is not easy, the feeling of having created a living piece of art makes the effort all worth while.
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Cũ 05-15-2008, 02:14 AM   #3
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Default




Trident Maple/Acer buegeranium Group Planting





Trident Maple/Acer buegeranium Group Planting





Satsuki Azalea






Juniperus sp./ California Juniper

Chinese Elm/Ulmus parviflora Group Planting


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Cũ 05-15-2008, 02:14 AM   #4
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Default Golden State Bonsai Federation Golden State Bonsai Collection - North in Oakland California

By John Castle
Alameda, California
The Bonsai and Suiseki Display Garden entrance from inside
The Golden State Bonsai Federation (GSBF), the non-profit bonsai organization consisting of over 70 local bonsai clubs established and maintains two bonsai collections. These collections provide infrastructures where exceptional bonsai are maintained for public viewing for the current and future generations.
The idea of two world-class masterpiece bonsai collections in the Northern and Southern areas of California was conceived by the Golden State Bonsai Federation (GSBF) Board during Hideko Metaxas’ presidency in 1979. In the early 90’s, several sites were investigated and considered for the Northern California permanent bonsai garden. Under the leadership of Seiji Shiba and his Site Selection Committee, a lease was signed with the City of Oakland Parks and Recreation Department in 1996. The leased land consisted of approximately one acre of property located in Lake Merritt Park.
The Golden State Bonsai Collection-North subsequently, under the guidance of Jim Ransohoff (Landscape Architect), designed and developed a dry stream Japanese garden, complete with a series of meandering pathways, with strategically located pedestals and benches on which masterpiece bonsai and suiseki were displayed. To complete the project, an entrance gate and perimeter Japanese-style fence was erected. In addition, several structures were designed and built, including a multi-purpose building, docent house, and miscellaneous storage structures.
The bonsai garden was opened to the public in November 1999, and the large multi-purpose building was completed in 2001. There are in excess of 100 bonsai specimens on display in the garden.
The trees in its collection ranges from traditionally styled Japanese Black Pine to tree species collected locally and styled by California bonsai artists. The collection houses the probably the most historically significant bonsai in the United States. The tree, Daimyo Oak (Quercus dentata), is believed to be the first bonsai to have been brought into the United States during the 1860s as a gift to Anson Burlingame, who was the United States minister to China, appointed by President Abraham Lincoln. Photos to follow are among the many other displays at the Collection.
California Juniper (Juniperus californica)
The tree, donated by Chuichi Kawahira, was collected in 1954 from the high desert region near Palmdale in Southern California. After being collected, it was grown in sand for three years to develop a new root system, and then it was transferred to this fine pot about 1964. At one time, it was believed to be one of the most photographed trees outside of Japan. The bonsai was shown in 1973 and 1978 editions of California Bonsai Society’s publication, “Bonsai in California.”
Coast Redwood (Sequoia sempervirens)
This was the first tree donated to the garden by the late Bill Sullivan in memory of his wife, Nancy. It was found about 20 years ago in a Marin County slide area. It lay on the ground for two or three years before Bill Sullivan received permission to remove it. Originally, the tree was about 20 feet tall, and one side had rotted. This determined the taper and height of the present tree.
California Coast Live Oak (Quercus agrifolia)
The tree, donated by Katsumi Kino****a, was collected by him in Carmel Valley area, approximately in the mid 1970’s. Also called the “Carmel Oak,” this tree has very small leaves. It is 22” high with a 9” diameter trunk in a brown oval drum pot, approximately 20 x 15” and 5.5” deep.
California Juniper (Juniperus californica) This tree, donated by the late John Naka, was collected by him on November 29, 1989 from the Northwest end of the Mojave Desert on Quall Mountain Ranch at a place called Sand Canyon. This large tree is named “Heisei” (pronounced “hay-say”), which was derived from the Japanese Era year of its collection. The 1989 was the year the Emperor of Japan named the new era “Heisei.” The earthenware, purple-brown, drum-shaped container was purchased in Japan by John Naka.
Japanese Black Pine (Pinus thunbergii)
This tree is a donation from the late Mas Imazumi Estate. This bonsai is reputed to be over 400 years old and was featured in the Pan Pacific Exposition on Treasure Island in 1915. The tree had been in the possession of Mas Imazumi for the past 40 years.
San Jose Juniper (Juniperus chinensis ‘San Jose’)
The material was initially purchased in 1974 by its donor John Castle from a nursery in West Los Angeles. The tree was propagated from a cutting in 1945, approximately. Pruned, wired, shaped and planted in an oversized bonsai pot in 1976. Ongoing refinement of its original design concept continued for several years. Planted in its present bonsai container in 1987.
Shimpaku Juniper (Juniperus chinensis var. sargentii) grafted on Prostrata Juniper (Juniperus chinensis cv. parsonii)
In the mid 70’s, Dianne Cook acquired a silhouette photograph of the juniper from Southern California and the Bonsai Society of San Francisco (the donor) decided to use it as their club logo tree. Dianne Cook found out that the tree belonged to a prominent Los Angeles attorney. Afraid of a possible lawsuit for using the tree as a club logo, she sought the attorney’s permission to use it, which was ultimately granted by the owner. Some years later, the attorney passed on and in his will, he donated the bonsai to Bonsai Society of San Francisco. The tree originally belonged to Mas Ishii, owner of Chikugo-en Miniature Bonsai Nursery in Gardina, California. His specialty was grafting Shimpaku junipers and Black Pines. On this bonsai, over 80 grafts of Shimpaku Juniper were performed by Ishii in the late 1940’s on to a Prostrata Juniper base – none of the grafts are now noticeable. The cascade has been shortened over the years. Recently in 2003, Yasuo Mitsuya from Japan further refined the tree.

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Cũ 05-15-2008, 02:15 AM   #5
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Default






Ezo Spruce/Picea jezoensis


Hawthorn/Crateagus sp.






Japanese White Pine/Pinus parviflora





Pinus parviflora/Japanese White Pine






Acer palmatum sp./Japanese Maple Group Planting



Japanese Black Pine/Pinus thunbergii



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Cũ 05-15-2008, 02:16 AM   #6
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Default






Japanese Black Pine/Pinus thunbergii


Juniperus sp./Juniper






Juniperus sp./Juniper





Juniperus sp./Juniper






Ponderosa Pine/Pinus ponderosa




Red Pine/Pinus densiflora



White Pine/Pinus parviflora


Slippery Elm/Ulmus carpinifolia syn. Ulmus minor





Yamaki White Pine/Pinus parviflora
Originally donated to the Arboretum in 1976 by bonsai master Masaru Yamaki of Hiroshima, this tree is estimated to be nearly 400 years old.
This tree has a remarkable history; the nursery in Hiroshima was only 2 miles from the epicenter of the nuclear bomb in 1945. Surrounded by a large stone wall, the collection including Yamaki, survived the blast.

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