Luo Hansong, also known as Podocarpus, is a slow-growing plant with short, dense leaves that thrive through all seasons. Due to its limited natural resources, it is often propagated through cuttings for small-scale bonsai creation. This method not only provides creative materials but also supports ecological conservation by reducing pressure on wild populations.
In greenhouse nurseries, softwood cuttings are commonly used for propagation. The best time for taking cuttings is during spring (February to April) or summer (May to June). Select healthy shoots from the previous year’s growth, and cut them into 8 cm sections. To maximize survival rates, it's recommended to take cuttings in the early morning and trim the ends slightly before planting. Insert the cuttings into a sand bed at a depth of no more than one-third of their length. After planting, water them thoroughly and maintain high humidity by misting 2–3 times daily, depending on the weather.
Roots typically develop within about 80 days. However, since the new roots are fragile, it's important not to transplant the seedlings too soon. Instead, keep them in the sand bed for an additional 6–8 months to allow for stronger root development. Transplanting should be done in the following spring when the soil warms up and plants begin to revive, significantly increasing the survival rate.
The transplantation process involves preparing the potting mix by placing it in nursery pots, exposing it to sunlight, and drying it out. Regularly turn the soil with a spade every 10 days or a month to ensure it remains loose and well-aerated. This mixture has excellent water retention and nutrient-holding capacity, making it ideal for young, delicate roots.
When transplanting, loosen the soil with a trowel and use one-third of the original potting mix. Gently remove the cutting seedlings from the sand bed, shake off excess sand, and place them in the pots with their roots intact. Water the previously removed soil and spray it to help bind the roots and soil together, maintaining a good structure.
After transplanting, water regularly using a sprayer and apply a diluted fertilizer solution after 30 days. Monitor the plants closely and adjust fertilization based on their condition. Strong and weak seedlings may require different treatments. Place the plants in a well-lit and ventilated area to support healthy growth and ensure long-term survival.
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