How to Propagate Gardenia? Detailed Guide to the Latest Propagation Methods

Gardenia, also known as Zhizi, is an evergreen shrub belonging to the Rubiaceae family. Its branches and leaves are dense, its foliage is vivid, and the fragrance of its flowers is very strong. The gardenia has relatively high economic value, with effects such as clearing the lungs and relieving cough, and cooling the blood and stopping bleeding. Moreover, many people grow it for ornamental purposes, and it has high ornamental value. But how should it be propagated when growing it? Below, the editor brings you the propagation methods for gardenia. Let's take a look!

1. Cutting Propagation

Gardenia branches have a relatively strong rooting ability. When taking cuttings, the timing should be determined according to the growing region. In the south, it is generally done in March-April and August-October, while in the north, cuttings should be taken around May-June. Before taking cuttings, first cut off healthy, pest- and disease-free branches, then cut the branches into small sections of about 12 cm, soak the base in naphthalene acetic acid for about 5 seconds, and then insert them into a sand bed. Keep the sand bed moist, and the rooting rate of the branches will increase. Under normal management, they can root in about 30 days after cutting, and can be transplanted after two months.

2. Layering Propagation

Layering propagation is generally carried out around Qingming Festival each year. First, select healthy branches no more than 1 year old from mother plants that have grown for more than 3 years, and control the length to about 28 cm. Press the branch to the ground, notch the part of the branch that needs to enter the soil, then cover the notched part with soil and press it firm, and water thoroughly, which can increase the rooting rate. Generally, roots will form after about one month. After rooting, cut the branch off from the plant after another month to form an independent plant. Transplant it with soil. During the growing period, keep the soil moist to promote the growth of the layered plant, apply appropriate additional fertilizer, and carry out management well.

3. Seed Propagation

Before sowing, select plump fruits with vivid color, and dry the fruits to use as seeds. Before sowing, dig the seeds out of the fruits, rub the seeds apart, remove the pulp and mucus, scoop out the seeds that sink to the bottom of the water, and then dry them. Then choose a sunny mountainous area with deep, loose, soft, and fertile sandy soil for sowing. Before sowing, carry out deep plowing and soil preparation, remove tree roots and miscellaneous wood from the soil, and make beds with proper specifications. Apply the base fertilizer for planting, dig the sowing furrows, and then sow. The sowing time is generally in spring and autumn. After sowing, cover with fine soil, water thoroughly, and keep the soil moist to increase the emergence rate.

4. Water Cutting Propagation

The steps for selecting and preparing branches for water cutting propagation are similar to those for cutting propagation, but the main difference is that the base of the cuttings is inserted into clean water. When carrying out water cutting propagation, pay attention to the temperature to prevent excessively high temperatures from raising the water temperature and causing the base of the cuttings to rot. Also ensure that the cut at the base of the cuttings is smooth and free of impurities, otherwise they are also very prone to rotting. Replace the water about once every 2 days, place the water container in a cool place, and roots will form in about 3 weeks. After rooting, put them into pots promptly; if the young roots exceed 3 cm, they are easily damaged when potting.

The rooting rate of water cutting propagation is very high, but it is not suitable for large-scale planting and is generally suitable for home ornamental use. Regardless of the propagation method, after successful rooting, the soil should be kept moist, so as to effectively ensure the growth of gardenia seedlings. That is all for today's introduction. This article is for reference only. Thank you all for reading and supporting.