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Detailed Explanation of Kerria japonica Planting Methods and Technical Key Points

Growing Techniques By Emily Carter 0 views
Shrubs

 Kerria japonica, also known as Fengtang flower, Huangdu plum, Huangyu plum, etc., is a deciduous shrub of the genus Kerria in the Rosaceae family. Its branches and leaves are emerald green and slender, and golden flowers cover the whole tree, with a unique charm. Planted in wall corners and beside pipes, it has a screening effect. It is suitable for flower hedges and flower paths, and for mass planting in front of evergreen tree clusters, beside ancient trees, and in gaps between mountain rocks; the petals are yellow, broadly elliptical; the stamens are numerous, free, about half the length of the petals; there are 5-8 carpels, pubescent, and the style is about as long as the stamens. The achene is black, hairless, and the calyx lobes persist. It prefers a warm, humid, and semi-shaded environment, and has poor cold tolerance; it is distributed in most parts of China and Japan. In addition to ornamental use, Kerria japonica also has medicinal effects such as reducing swelling, relieving pain, relieving cough, and aiding digestion.


Planting techniques for Kerria japonica


1. Soil: Kerria japonica does not have strict soil requirements. It grows best in fertile, loose sandy loam, and the soil needs to remain well-drained, soft, and non-alkaline.

2. Water: Kerria japonica generally does not need much watering, but in summer, when the temperature is too high and water evaporates too quickly, the amount of watering should be appropriately increased to prevent the potting soil from becoming too dry.

3. Temperature: Kerria japonica likes a warm and humid environment, so in winter cultivation requires moving it indoors to overwinter.

4. Fertilization: Potted Kerria japonica needs to be watered with cake fertilizer solution in the afternoon, but not too much. During the growth period of Kerria japonica, apply 1-2 topdressings of liquid fertilizer as appropriate according to the plant's growth condition.

5. Repotting: In cold regions, potted Kerria japonica should be repotted about once every 3 years, combined with root pruning, division, and renewal of old and weak branches.

Propagation methods for Kerria japonica


Division: The main propagation method is division, and the mother plant does not need to be dug out. It is carried out in early spring and late autumn. Use a knife or shovel to directly divide new plants each with 1-2 branches from the mother plant in the soil and take them out for transplanting. The mother plant left in the soil can be divided again the following year. Double-flowered Kerria japonica is suitable for the division propagation method. 
Cuttings: For early spring cuttings, use hardwood cuttings (in March) with one-year-old branches that have not sprouted. In the plum rain season, around June, use softwood cuttings with vigorous current-year branches, leaving half the leaves, with cuttings 12-450px long, inserted into brown soil, mature soil, or sandy soil. If inserted in the open field, shade is needed to prevent drying.
Sowing: The sowing propagation method is only used when mass-propagating the single-flowered original species. After the seeds are harvested, they need to be stratified in sand at 5°C for 1-2 months, and sown the following spring. After sowing, cover with fine soil and then grass. After seedlings emerge, build a shade frame.



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