Japanese maple, Acer japonicum - planting and cutting


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Acer japonicum is one of the most magnificent ornamental shrubs found in native gardens. The summer-green, small trees shine in their full beauty, especially in autumn, the foliage varies in this time in the bright colors red, yellow and orange. Well over 400 varieties of the maple family are known, which differ from each other especially in the deciduous and growth habit. Despite its expected growth height of about 10 meters, Japanese Maple can also be easily cultivated in planters.
Location and ground
The planting site plays a significant role in the deciduous tree. Specially colored varieties quickly lose leaf coloration on too dark a place. To ensure that the respective Acer japonicum variety feels comfortable, the requirements for the location must be met. Strikingly colored maple plants prefer a full-sunshine planting site. Other varieties, on the other hand, suffer burns from the leaves due to direct and prolonged sun exposure. These representatives of the ornamental plants should therefore be cultivated in the light partial shade. All species of Japanese maple prefer a sheltered plantation with high humidity. In midsummer you can lightly moisten the foliage of the leaves in the late afternoon with a water atomizer.
Tip: Damage and discoloration of the foliage can not be regenerated. The plant will only shine again in its pristine splendor with new, exhilarating leaves.
The soil plays an important role in the Asian ornamental plants. To promote the resilience and growth of maple plants, you should pay attention to the following points:

  • Substrate must be permeable and nutrient-rich.
  • Ideal is a soil with a neutral to slightly acidic pH.
  • Heavy soil should be loosened up with sand or pebbles.
  • Conventional potting soil mixed with humus is suitable for potting.
Pouring and fertilizing
Dryness and waterlogging are two factors that are not tolerated by Acer japonicum. Never let the root ball dry out completely and pour in regularly, especially in midsummer. When planting in the field, a pouring margin has proven itself in the crops. For maple plants in the tub, you should apply drainage to the bottom of the vessel to prevent standing moisture and the associated root rot. Supply the plants early in the morning or late in the afternoons with water on hot summer days. This prevents that the valuable wet in the midday heat can evaporate quickly. With bark mulch, you can not only avoid the growth of annoying weed species, but at the same time prevent the soil from drying too quickly.
Japanese maple requires a regular dose of nutrients during the main growing season, which ranges from March to late August. For ornamental shrubs planted directly in the garden, it is sufficient if you mulch the soil every now and then and mix compost directly under the soil about every two months. A special long-term fertilizer has proven itself. In contrast, potted plants should be given a liquid fertilizer every 4 to 6 weeks. This is added to the irrigation water, ensuring a uniform distribution in the substrate.
plants
The Japanese ornamental plants can be cultivated in the bucket just as easily as directly in the field. In both types of plants, however, it is important to meet the requirements of location and substrate. Acer japonicum is available in garden centers or directly in the specialized trade mostly as bale goods. Before planting, the roots should be sufficiently saturated with water for about 6 to 8 hours.
  • The planting hole must be twice as large as the root ball of the ornamental shrub.
  • Earth excavation with humus and sand if necessary.
  • Insert the plant into the hole up to the upper root neck.
  • Refill the substrate and press gently.
  • Soak the soil sufficiently.
Summer green trees are ideally set in the spring. This leaves enough time for the plants to root before the coming winter. Keep the soil evenly moist and protect young plants - if possible - from the midday sun.
Acer japonicum in planters can be used in many ways. Whether as a decorative eye-catcher on a large terrace or as a solitary tree in the front yard. It is important that you use a sturdy bucket and lay a drainage of porous material on the floor. When you need to repackage, recognize that the roots of the plant are filling the entire vessel.
multiply
Japanese maple can be propagated by cuttings. For a slightly woody shoot is cut to a length of 15 centimeters. In order for the cutting to put its energy into the formation of roots, the complete foliage is removed except for two upper leaf pairs.Lean substrate and a warm environment are ideal conditions for reproduction to succeed. Turn the cutting into humus rich soil as soon as new shoots and leaves form. Not always this measure is crowned with success. Always cut several cuttings at a time to increase your chances.
To cut
Acer japonicum belongs to the variety of deciduous plants, which seldom need any form-cutting. A wrongly done pruning can in the worst case change the characteristic growth habit of the plant and also lead to the infestation of fungal spores.
  • In June, cut off the shoot tips directly above a bud.
  • Cut out sick and dead branches completely.
  • Remove frozen shoots before sprouting leaves in spring.
  • Cross-growing branches - so-called Wasserschosser - will be cut at the latest in August.
Clean and disinfect the equipment used before and after work. This will prevent fungal spores and pests from multiplying freely in the garden.
overwinter
Almost all commercially available varieties are hardy, but you should take some precautions before the cold season:
  • As of August, adjust the supply of nutrients.
  • Wrap in winter hardy regions the lower trunk with fleece.
  • An approximately 3 to 5 centimeter thick layer of bark mulch protects the soil and the roots.
  • Planters are thickly wrapped with burlap.
Despite all the precautionary measures, a wet and cold weather and wind particularly sets the ornamental shrubs in winter. Therefore, make sure during the planting that the selected location is sheltered from the wind. Frozen shoots can be removed in early spring.
Diseases and pests
Maple trees are very susceptible to Verticillium wilt, a fungal disease that infiltrates the plant from the ground. The fungus is often introduced at Neuanpflanzungen. One recognizes the infestation on the withered leaves. Newly expelled shoots suddenly show withered leaves. The leaves are flabby and have an unhealthy pale green color. Branches are also attacked. The fungus clogs the water pipes. You can not fight him directly. The best thing is prevention. This includes keeping the culture conditions as optimally as possible. In addition, plant tonic can be used. Lowering the pH can lower the risk of infection. Through professional composting, the permanent bodies can be killed. Most of the time it remains only the opportunity to cut back affected branch and drive parts until well into the healthy wood.
Often a Japanese maple has brown leaves. This may be because he is too wet or too dry. However, he may have got too much sun too. It also happens that he can not cope with cold wind. That's why a wind-protected location is important.
If one notes on his maple holes in the trunk or you find drill chips, it may be the citrus longhorn beetle. They are brought into the nurseries with the plants from Asia. The pest is so dangerous that it is even reportable. It easily spreads to many native tree species and causes them to die off.
Conclusion
The plants with the strikingly colored leaves are an asset to any ornamental garden. Especially as a solitary eye-catcher Japanese Maple is very good effect. Like any other crop, Acer japonicum has specific requirements for location and soil. If these are fulfilled, the ornamental wood shines in its full deciduous splendor. Contrary to what is often suspected, the care required for maple plants is limited. However, any hobby gardener should keep in mind that Acer japonicum are small trees. Accordingly, a lot of space must be given to the plants already during the planting.
Care tips soon
  • The Japanese maple is not in the blazing sun.
  • He prefers open sun or very light penumbra. The maple needs a sheltered place if possible.
  • The Pflanzsubstart should be nutrient-rich, slightly moist and permeable to water. The tree is sensitive to waterlogging.
  • Favorable is a medium to high humus content. For heavy clay soils you should mix in peat moss to loosen the soil. Calcareous soil does not tolerate the tree.
  • The maple has many leaves and thus evaporates a lot of water. The earth must therefore always be kept moist but never wet. Waterlogging is to be avoided.
  • In winter, a frost-free location is recommended. It should not be warmer than 8 ˚C at the location. The above-ground parts should be protected from cold, dry wind. The root ball must always be kept slightly moist. The plant substrate should never completely dry out.
  • The easiest way to multiply the Japanese maple is by seed. Cuttings propagation is also possible, but difficult. Often, the propagation of cuttings does not succeed. Seeds are better.

Video Board: How to Start a Cutting From a Japanese Maple Tree.

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