How to cultivate potted Jasmine
Let me tell you about how to cultivate potted Jasmine and share some related experience on Jasmine plant care. Detailed content will be shared next.
Jasmine is an evergreen shrub of the Oleaceae family, also known as Jasmine or Tea Flower. It is native to India, Iran, and other regions. Its leaves are elliptical, green, glossy, and its flowers are white, emitting a fragrant aroma when in bloom, and is known as the "First Fragrance in the World". It is widely cultivated in various parts of China.
The compound umbel is terminal or axillary, usually with 3-9 flowers. The calyx is cup-shaped, with 7-9 lobes, nearly linear, about 5 mm long. The petals are white, single or double, ovate or elliptical. There are 2 stamens, with very short filaments and anthers that are enclosed, and 1 pistil, with a green stigma that is slightly taller than the corolla. There is also the thousand-petal Jasmine, with greenish-white petals and fragrant flowers. The flowering period is from May to October. The fruit is a berry. The tree height is 0.5-2 meters, with slender branches that are slightly vine-like, young branches have short pubescence or are almost hairless. The leaves are opposite, ovate to elliptical, 2.5-9 cm long, 3-5.5 cm wide, thin papery, with an acute apex, rounded or nearly cordate base, green and glossy.
It thrives in abundant sunlight, known as the "unburnt Jasmine", and is a long-day plant. It is heat-tolerant, with an optimal growth temperature of 25-35°C, not cold-tolerant, and afraid of frost. It prefers fertilizer, with the saying "clean orchid, dirty Jasmine". It requires frequent application of dilute liquid fertilizer during the growing season. It is suitable for an air relative humidity of 75%-85%, the potting soil should not be too wet, nor too dry. It prefers acidic soil, with a suitable pH of 6-6.5. Northwest winds have an adverse effect on flowering.
Propagation by cuttings is done in spring during pruning, or during the plum rain season. Cut 1-2-year-old healthy branches from 2-4-year-old parent plants as cuttings, 8-10 cm long, retaining 2-3 axillary buds on the upper part of the nodes. The lower cut is about 1 cm below the node, and the upper cut about 1 cm above the node. The lower cut is oblique, usually the upper cut is flat, but for cuttings in the open field, the upper cut should be oblique to prevent waterlogging and rot. At a temperature of about 25°C, roots form in about 30 days.
Layering propagation is done during the rainy season or before spring sprouting. Select 1-2-year-old healthy branches and wound them. For ground planting, dig a trench near the branches and bury the wounded part in the soil, cover with 4-5 cm of soil, and secure if necessary. Remove the leaves on the buried stem nodes, do not shade, keep the soil moist, and after rooting, cut away from the parent plant.
Division propagation can use suckers that grow at the base of the trunk of old trees, done in spring or autumn. Cut or cut the suckers at the tillering site, protecting the roots as much as possible.
Use a pot with a diameter of about 20 cm for potting. Water when the soil is slightly dry, keeping the potting soil moist. Too much watering or积水 during rainy days can cause root rot, leading to yellowing and falling leaves, or even plant death. During the growing season, if the potting soil is too dry or encounters dry weather, the growth of new branches is hindered. In addition to watering promptly,喷水 should be used to increase air humidity. In hot and dry summer weather, water once a day; in dry and windy spring and autumn weather, water every two days; in winter, when the plant enters dormancy, the amount of watering should not be too large, otherwise it is easily overgrown. Initially, water with a 0.2% ferrous sulfate solution every 10 days or so to keep the potting soil slightly acidic. During the flowering period from June to September, apply a liquid fertilizer high in phosphorus, once a week, using a 0.1% potassium dihydrogen phosphate solution, sprayed on the leaves in the evening to promote more flowering. Repot and change the soil every 1-2 years, generally not removing the roots, replacing with new nutrient-rich soil and placing some slow-release fertilizer at the bottom of the pot as a base fertilizer. If茉莉 is often exposed to northwest winds, it can cause poor flowering, flower drop, or color change, so the pot should be placed in a well-ventilated area, away from northwest winds. If possible, move the pot outside earlier in the spring, placing it in a sunny spot, and move it back inside in the autumn to a warm and sunny place.
Jasmine generally blooms in the year after planting, with the most flowers in 2-3 years, then declining year by year, and needing to be pruned and updated in time. Pruning is done in spring during repotting, leaving branches about 20 cm long and cutting off the rest. Very old branches should be cut from the base to encourage the growth of strong new branches. At the same time, cut off dense branches and remove old leaves to promote new buds and more flower buds. Prune frequently during the growing period.
The reasons for the yellowing of potted Jasmine leaves include excessive and frequent watering, poor drainage, alkaline potting soil, and long-term lack of repotting. The reason for only leaves and no flowers is insufficient light or too much nitrogen fertilizer.
Common diseases include white rot and brown spot. Common pests include mites, Jasmine leaf borer, and scale insects.
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