[Ebook Việt Hoá] BONSAI and HOUSEPLANTS for Beginners – Anne Duval – Bonsai Repotting (Sang chậu cây Bonsai)

  • Nguồn: [Ebook Việt Hoá] BONSAI and HOUSEPLANTS for Beginners – Anne Duval (Bonsai và Cây Cảnh trong nhà Houseplants cho người mới bắt đầu)
  • Biên tập: Dũng Cá Xinh (Tháng 08/2021)
  • Dịch: Huyền Nguyễn

English 

When should my bonsai be repotted?

The best time to repot the bonsai tree is late winter.  Mid-February is a good general median for most Bonsai trees.  During the summer, the Bonsai becomes dead, and the spring tree rests.  Junipers, of course, are evergreens, and they don’t drop their leaves like a deciduous tree, but they just fall asleep.  Severe root pruning and transplantation can be quite painful to your crop during the growing season.  At the end of the day, pruning your bonsai tree roots should be completed just before the growing season starts, because that’s when your broken root ends start to rebuild themselves.  Pruning the roots too early in dormancy ensures that the roots can stay unhealed and exposed and vulnerable to root rot or disease.

Why should I repot my bonsai?

The Bonsai tree is located in a very small world. The entire earth is bound by the proportions of a small bonsai bowl, which can quickly become root-bound.  As the Bonsai tree grows, the root system absorbs what used to be the soil.  (That’s wrong, it was “owned” by it).  A bonsai can not survive unless it has an adequate amount of soil.  When new roots are created, older roots become inactive and need to be pruned off.
Bonsai soil is designed to increase drainage.  That leaves behind a lot of built-up, not – so-great stuff in the soil.  It is also normal to build up salts and minerals.  Replacing the soil is a fast way to fix the pH balance of the bonsai plant and build up salts and chemicals.

How often should I repot my bonsai?

Typically, once a year for younger Bonsai trees and up to three years for older ones.  You’re not really going to know until you dig at the roots, but most bonsai trees are repotted every February.  They can be re-potted if necessary during the growing season.
 
If you can pull the tree out of its bowl, and the root ball comes out in one piece, then it’s time to repot it.

Should I put my bonsai in a bigger pot?

Not even that.  Repotting doesn’t mean replacing the bowl, it really ought to be thought of as replacing the dirt.  Although most Bonsai trees and definitely Junipers will grow bigger every year and a larger container will do a lot of good, not only for the wellbeing of the crop, but aesthetically as well.

Won’t cutting the roots of a plant kill it?

Sure, pretty much… (doesn’t you think that?) But pruning or combing the roots of a Bonsai doesn’t mean cutting off the leaves.  The goal is to delete the obsolete old ones and the new ones if they have become too long.  The root system transfers water and nutrients to the top of the tree through a process called transpiration.  It’s kind of like photosynthesis in the opposite.  Almost all the moisture collected by the root system is drained through the small root hairs at the tips of the branches.  The big fat roots are generally useless and can be chopped off.  The Bonsai tree must be matched between the roots that support the plant and the photosynthesis.  Small amounts of leaves, as many bonsai trees are built to have, implies less photosynthesis that can sustain the roots.  So you need fewer seeds, and vice versa.

What kind of soil do I need to use?

Use a specially formulated potting medium for bonsai.  They’re worth the money.  These are balanced and blended to make sure the bonsai is well drained.  Choose one that has been “double sifted,” which means that the large chunks of material have been sifted out, and the very small particles, too.  Of example, the dust from the peat moss may choke out a tender new root growth.  BonsaiOutlet.com is marketing a combination of our own recipe called Rootopia ®.  It’s a great blend, and it’s used far and wide.

Bonsai Longevity

The Japanese style of Bonsai employs meticulous and masterful pruning and maintenance methods to produce a miniature, but naturally realistic tree. By comparison to popular belief, Bonsai trees are not a particular species of dwarf tree or plant. In addition, any tree species can be planted and educated to become Bonsai. It takes skill and practice to achieve a perfect shape and form. Simply planting a tree in a small pot and allowing it to flourish with intermittent pruning would not result in an aesthetically pleasing crop. Every leaf, stem, twig must be continuously trimmed and directed precisely in order to achieve the desired image.

Life Expectancy Of The Bonsai Tree

The Sandai Shogun no matsu collection of the Tokyo Palace in Japan is a white Bonsai pine claimed to be over 500 years old and is the oldest known Bonsai tree in the world. In fact, the Bonsai tree can be assumed to have the same life span as the other trees of its genus with an optimal climate and maintenance. It is very hard to see the maturity of the Bonsai tree. Trees are often pruned to mimic the look of ancient trees with bent limbs and contorted trunks. A tree that is only a few years old can look like a miniature version of a wild tree that is hundreds of years old. It is certainly possible for the Bonsai tree to pass from generation to generation.
 
Like their feral ancestors left alone in the forest, Bonsai trees have to be properly tended in order to survive. The most important factor in the survival of the Bonsai tree is the treatment it gets. A tree that is badly nourished will wither and die easily, and if it does survive, it may be frail and scrawny. Maintaining the plant in good environmental conditions and ensuring that it stays disease-free and free from pests is vital to survival. Like any seed, sufficient compost and nitrogen must be used and, if appropriate, the whole tree must be replanted. The small stature of the Bonsai tree does not mean that it must have a small life span if it is properly cared for.

Proper Care

Climate is the key to a good Bonsai. Depending on the variety of plants, it may grow indoors or outdoors. Outdoor species need a cold weather season and become dormant. Outdoor Bonsai are likely to die if left indoors for a longer period of time. In milder seasons, such as spring and summer, Bonsai can be taken indoors for up to a week. The indoor Bonsai tree must be kept at temperatures between 50 and 80 degrees. They may be left outside in milder months, but extreme cold can allow it to die and must be kept indoors.
 
As with other crops, adequate drainage is an important consideration. Soil humidity should be monitored closely to ensure that it is not over or submerged. In the summer months when the tree is dry, it will have to be watered regularly, less often in the winter months or in the rainy months.
 

Although many Bonsai fans have opted to make their own soil mix, a potting mix can also be used. Bonsai special soil mixtures are available. The main difference between the Bonsai formulation and the other potting soil mixtures is the decreased volume of nitrogen.

 
Fertilizer is often used for plants that the grower needs to be complete and lush. Bonsai plants often require fertiliser for optimum health. To order to ensure optimal production, fertiliser containing nitrogen, phosphorus and potassium must be supplied to the crop at the right time of year. Nitrogen stimulates the growth of stems and leaves. Phosphorus maintains healthy soil and facilitates budding. Potassium helps to protect against infection and promotes flowering. Fertilize Bonsai throughout the spring and summer with a natural solution and turn to nitrogen-free fertilizer in the fall in preparation for the winter.

Trimming For Optimal Lifespan

Bonsai tree, like any other plant, has a daily growth cycle. While Bonsai does seem to be stunted, this does not mean that it has ceased to grow. Proper trimming of the Bonsai tree is the key to maintaining its small size and keeping it alive for a long time to come.
 
Depending on the crop, it may react well to pruning or fail to recover from extreme trimming. Usually, new growth can be cut in the spring and old growth is expected to be pruned in the fall. Conifer trees, such as pine and cedar, can be pruned with fingertips by twisting. It provides a more natural look for these types than the use of scissors. Deciduous trees are best off with scissor pruning.
 
Trimming sick or sick leaves and branches can improve the health of the tree. Monitoring the development of the plant closely so as to be able to determine which branches produce healthy leaves and which are struggling to survive. Pruning unhealthful branches will allow the rest of the plant to survive and encourage healthy branches to grow in the next season.
 
Once the necessary branches and leaves have been removed, the cut branches should be covered. A wax sealant is best suited to a conifer tree, while tar-based coating is best suited for deciduous species.
Ideal Plants For Bonsai
 
By practice, any plant can be conditioned to be a Bonsai tree. When selecting a longevity crop, it is best to choose a variety known for its adaptability and durability. Based on the aesthetics and style, whether deciduous or evergreen trees may be used. Consideration should also be granted on the basis of the skill level of the grower.
 
Preferred evergreen plants:
  • Pine
  • Pomegranate
  • Holly
  • Fig
  • Azalea
  • Cypress
  • Cedar
Preferred deciduous plants:
  • Maple
  • Beech
  • Cherry
Such plants have been used to create beautiful Bonsai plants throughout centuries, and many are known to be able to live beyond the lifetime of their wild counterparts. Ensuring that the plant is well cared for and free from stress and infection will help the Bonsai not only survive its natural lifespan, but probably survive and thrive for several human generations as well.

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