Osmanthus is a traditional and precious Chinese flower with a rich and intoxicating fragrance. However, it is not easy to grow healthy osmanthus trees and reap a bountiful harvest. This article will introduce relevant knowledge about the planting time, growth cycle, and precautions for osmanthus, hoping to help friends who want to plant osmanthus.
I. Planting Time for Osmanthus
Osmanthus is suitable for planting in autumn, generally from October to November. This is because the weather is suitable at this time, with moderate temperatures and high humidity, which is conducive to the growth and root establishment of osmanthus.
II. Selecting Suitable Osmanthus Varieties for Planting
When purchasing osmanthus saplings, you should choose vigorous seedlings with undamaged or rusted roots. In addition, select varieties that are suitable for the local climate and soil conditions to ensure smooth growth.
III. Preparing the Soil
The soil for planting osmanthus should mainly be sandy loam. You can add appropriate amounts of organic fertilizer, compound fertilizer, and tricalcium phosphate to increase soil fertility and maintain good aeration and drainage.
IV. Digging the Planting Hole
The root system of osmanthus is relatively developed. The depth of the hole should generally be 2 to 3 times the depth of the sapling's root ball, and the width can be the same as the depth. It is best to lay a layer of fine sand or brick rubble at the bottom to facilitate drainage.
V. Cultivating the Soil
Before planting, the soil should be loosened and thoroughly tilled to improve aeration and fertility. At the same time, some organic fertilizer can be added to increase the soil nutrient content, which is beneficial for the tree's growth.
VI. Planting the Tree
Place the sapling in the hole, sprinkle a small amount of decomposed organic fertilizer, and make sure the roots are spread out evenly. Then, fill the hole with soil mixed with some cement ash and gently press it down by hand.
VII. Watering
Do not water too much immediately after planting. Moderate watering is sufficient. Too much water can affect the sapling's growth and even lead to death.
VIII. Pruning
The shape of the osmanthus tree can be pruned into a conical or tree-like form. Pruning is generally done in spring and autumn, removing dead branches, diseased parts, and pests to allow the tree to grow more lush.
IX. Fertilizing
Osmanthus needs to be fertilized. You can choose organic fertilizer, compound fertilizer, or tricalcium phosphate, etc. Fertilize 2-3 times a year to ensure the healthy growth of the tree.
X. Pest and Disease Control
Osmanthus is susceptible to aphids and whiteflies, which can be controlled with corresponding pesticides. In addition, pay attention to promptly removing diseased branches and dead wood to prevent the spread of pathogens.
XI. Pay Attention to Watering
Osmanthus needs to maintain suitable humidity; both too dry and too wet conditions will affect its growth. In the hot summer, water in a timely manner to keep the soil moist and avoid the osmanthus from drying out.
XII. Protecting the Roots
The root system of osmanthus is very developed, so it is important to protect it. Avoid damaging the roots when building roads or carrying out other construction work, so as not to affect the tree's growth and development.
XIII. Pay Attention to Winter Insulation
The temperature is low in winter, and osmanthus saplings are relatively fragile and need insulation. You can use straw curtains or build simple sunshades for protection to prevent cold waves.
XIV. Growth Cycle
The growth cycle of osmanthus is about 3-5 years. It can begin to flower and fruit after its initial tree shape is formed. During this period, it is necessary to pay attention to fertilizing, pruning, and other work to ensure the healthy growth of the osmanthus tree.
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Planting osmanthus requires attention to every detail, from selecting the variety to cultivating the soil, and then to planting and pruning. Every step needs to be taken seriously. Only in this way can the osmanthus grow lush and produce splendid flowers.