How to Propagate Gardenia? A Detailed Guide to Three Main Propagation Methods

Gardenia propagation can generally be divided into sexual propagation and asexual propagation. Sexual propagation usually refers to the sowing method, while asexual propagation is divided into two types: cuttings and layering. Since gardenia seeds are relatively difficult to collect, cuttings and layering are generally the two methods most often used for propagation.

Gardenia

I. Propagation by Sowing

Generally, plump, deep-red ripe fruits are selected, dried in the sun or in the shade together with their husks and kept as seeds. Before sowing, use scissors to cut open the seed husk, dig out the seeds, rub them apart in hot water, remove floating seeds or impurities, then scoop out the sunken, plump seeds, spread them on a bamboo mat, and place them in a ventilated spot to dry off excess moisture. Generally, a sunny hillside or earthen plot is chosen, and sowing is done in deep, loose, fertile sandy loam. Land at the edges of fields or corners can be used for planting, or it can be intercropped or relay-cropped with legumes. Before planting, plow the land 1-1.5 chi deep, remove miscellaneous tree stumps, and build raised beds with a bed width of 4-5 chi (the spacing can be larger if the soil quality is good, otherwise smaller), with a bed height of 6 cun. Soil mixed fertilizer, green manure, or human and livestock manure water can be applied as base fertilizer; for example, apply 20-30 dan of human manure and urine per mu. After the soil dries, shallowly rake the clods and level the bed surface. On the bed surface, open sowing furrows at a row spacing of 6-7 cun, with a furrow depth of about 1 cun, ready for sowing.

Gardenia can be sown in spring or autumn, but is generally sown in spring. Spring sowing is done around the time of Yushui (Rain Water), and autumn sowing is done around the time of Qiufen (Autumn Equinox). When sowing, mix the seeds with wood ash and evenly sow them in the sowing furrows, then cover and level the sowing furrows with fine soil or burnt soil, cover with grass, and sprinkle water. Keep the soil moist at all times to promote seedling emergence, using 4-6 jin of seeds per mu. After emergence, be sure to remove the covering grass promptly. During the seedling stage, weed frequently, taking care not to damage the roots of the seedlings. After weeding, apply diluted human manure and urine water each time. After one year of seedling cultivation, they can be transplanted. If transport is over a long distance, it is best to coat the roots with yellow mud slurry, cover with grass to retain moisture, plant one plant per hole, then cover with soil, press firm, and sprinkle water. After planting, cultivate and weed once each in spring and summer every year and apply topdressing. Human and livestock manure, barnyard manure, compost, and cake fertilizer can all be applied. Before flowering in summer, it is better to apply fertilizer with a higher phosphorus and potassium content. Fertilization is generally carried out after weeding and loosening the soil.

II. Propagation by Cuttings

This can be divided into spring cuttings and autumn cuttings. Spring cuttings are done in mid-to-late February; autumn cuttings are done from late September to late October. There are slight differences between the north and the south, but the survival rate is generally highest between summer and autumn. For cuttings, select healthy 2-3-year-old branches, cut them to 10-12 cm, remove the lower leaves, and keep the top two leaves, each cut in half. First dip them in vitamin B12 injection, then insert them obliquely into the cutting bed, leaving only one node above the surface. Be sure to provide shade and maintain a certain humidity.

Generally, roots can form in 1 month. Under conditions of 80% relative humidity and a temperature of 20-24°C, it takes about 15 days. If soaked in 20*10 to the -6th power to 50*10 to the -6th power indolebutyric acid for 24 hours, the effect is even better. When the rooted seedlings begin to grow, transplant them or pot them individually. They can bloom after 2 years. In the south, there is also a water-cutting propagation method, in which cuttings are inserted into a round disc woven from reed stems and left to float on the water surface so that the lower parts root in the water, and then they are transplanted for cultivation.

III. Layering Method

This is generally carried out around Qingming (Tomb-Sweeping Day) in April or during the plum rain season. In April, select 1-year-old vigorous branches 25-30 cm long from 3-year-old mother plants for layering, pull them to the ground, and notch the part of the branch that enters the soil. If the notched part can be dipped in 200 ppm naphthalene acetic acid powder and then covered with soil and pressed firm, rooting is even easier. If there is a three-forked branch, then at the fork opening, three seedlings can be obtained at one time. Generally, roots form after 20-30 days. After rooting in June, they can be separated from the mother plant. By the next spring, they can be divided and planted with soil or potted individually. For transplanted seedlings or potted plants, spring is the best time, carried out during the plum rain season, and a soil ball is required. During the growing period, keep the soil moist, and water more during the flowering period and midsummer. Apply fertilizer once a month, and apply phosphorus and potassium fertilizer once more before flowering. In early spring of the following year, prune and shape, and promptly cut off dead branches and leggy branches.

How to Grow Gardenia and Precautions for Growing Gardenia

Jasmine is a famous flower known far and wide, and the song "Jasmine Flower" is sung all over the world. There are many varieties of jasmine, and among them one is called gardenia, which has high cultivation value and ornamental value. Below, let us look at the cultivation methods and precautions for gardenia.

I. Cultivation Methods for Gardenia——Light

Gardenia especially likes sunlight. That is to say, even in hot seasons, a humid growing environment can help the cultivation of gardenia. Gardenia likes sunlight very much and cannot resist severe cold, so in winter gardenia becomes very difficult to grow. The most important thing to know is that the protection and light retention work for gardenia is very important. During the day, gardenia can be placed in a sunny place. Gardenia does not mean that it should be exposed to strong sunlight all day long.

II. Cultivation Methods for Gardenia——Water

Gardenia can withstand drought but is averse to waterlogging. When growing gardenia in summer, it can be watered twice a day, while also adding some spraying treatment. Once winter arrives, gardenia begins to enter its dormant period, and at this time it does not need much watering, otherwise there will be too much water.

III. Cultivation Methods for Gardenia——Soil

The growth of gardenia requires sufficient soil nutrients. By adding some humus and slightly acidic substances to the soil, the pH value of the soil can be balanced, which is beneficial to the growth of gardenia.

How to Grow Gardenia: Cultivation Methods for Gardenia

The fragrance of gardenia is especially refreshing. The evergreen gardenia blooms in summer, and at this time its fragrance fills the streets. Gardenia is very easy to grow. If you want to plant the beautiful gardenia, what should you pay attention to? Below, let us look at the cultivation methods for gardenia.

I. Cultivation Methods for Gardenia——Environment

Gardenia likes a warm, humid, and sunny growing environment. When caring for gardenia, it can also be appropriately placed in partial shade. At the same time, if it encounters strong light exposure, gardenia will be harmed.

II. Cultivation Methods for Gardenia——Soil

Gardenia loves acidic soil. Slightly acidic soil makes gardenia grow more healthily and beautifully. Before cultivating gardenia, the pH value of the soil should be controlled between 4 and 6, and the soil should be loose and fertile.

III. Cultivation Methods for Gardenia——Temperature

The growing temperature for gardenia should be around 20 degrees, and in winter it should be maintained at around 10 degrees. Below 10 degrees, this environment will cause the gardenia to become either too tall or too short. In summer, if it is relatively hot, choose a ventilated place to place it.

IV. Cultivation Methods for Gardenia——Water

Gardenia likes moisture and needs a large amount of water to support the growth of the entire plant. Each time you water gardenia, water it thoroughly. The next watering should wait until the soil has dried white. In summer, frequently spray water on the leaves to make the leaves and flowers more moist.