Cultivation method of potted gardenia jasminoides Ellis 1 Pot soil: Gardenia is a typical acid flower, and the pot soil is 40% garden soil, 15% coarse sand, 30% dung soil and 15% humus soil.
2, on the pot: potted gardenia planting should be carried out in late autumn, and there should be soil balls on the pot.
3, watering: Gardenia likes big water, the principle of watering is dry, it is best to water with fermented rice washing water. During the growing period, water containing 0.2% ferrous sulfate or water containing 0.2% ferrous sulfate or alum should be watered every 7- 10 days. At other times, just water it once every three days.
4. Lighting: In summer, it is best to put it in a place where light is scattered in the shade. In spring, summer and early autumn, leaves are often watered and sprayed with water to keep humidity. Put it in the sun in winter and keep it moist.
5. Change pots: If gardenias are potted, it is usually every two years 1 to 1 time, mainly to prevent soil alkalization. Pay attention to cutting off or cutting off the roots of pests and diseases when changing pots.
The cultivation method of gardenia jasminoides Ellis 1, seedling raising:
(1) Cuttings: Cuttings are divided into spring cuttings and autumn cuttings. Spring sowing is carried out in the middle and late February, and autumn sowing is carried out from the end of September to the end of 10. There are differences between the north and the south, but the survival rate is the highest in summer and autumn. Selecting healthy and disease-free branches for cutting, the cutting length is about 15cm, removing the lower leaves, leaving 2-3 upper leaves, and inserting them in sandy soil or pure sand substrate, with the cutting depth being 2/3 of the cutting depth. Sprinkle water frequently after transplanting to keep the soil moist. The temperature is 20 ~ 25℃, and the air humidity is above 85%. Rooting can take place about 30 days after transplanting.
(2) layering method: select 1 year-old robust branches from 3-year-old mother plants before and after Qingming Festival or in April of rainy season, layering them to the ground, and cutting off the buried parts of the branches.
2. Land selection: It is advisable to choose sunny acidic and slightly acidic soil, which is fertile, loose and well drained, and is not easy to be exposed to direct sunlight. Available places include hillsides, mud workshops, fields and corners.
3. Soil preparation: Dig a pit at the selected site with a spacing of 4-6 feet (the distance with good soil can be larger, otherwise it will be smaller), with a pit diameter of one foot and a depth of 0.8- 1 foot. Apply soil mixed fertilizer, green manure or human and animal manure as base fertilizer, and plant it after the soil fertilizer is uniform.
4. Planting: Planting should be carried out in cloudy days from March to April. After the seedlings are unearthed, they should be planted in time. Don't be exposed to the sun and wind. If the transportation is far away, it is advisable to irrigate the roots with yellow mud, cover the grass with moisture, plant one plant in each hole, and cover the soil with compaction.
5. Watering: After planting, root water should be poured in time to keep the air and soil humidity high, but no water can be accumulated to avoid root rot.
6. Fertilization: Gardenia likes fertilizer. Before pregnancy and flowering, the management of fertilizer and water should be strengthened, and the principle of thin application and diligent application should be implemented.
Notes on Gardenia cultivation 1. Gardenia pruning is mostly carried out in early spring. After each new shoot, you should pick the heart, and one branch will grow into three branches, forming a fast crown and many flowers. At the same time, cut off too many branches in the inner room. When the flowers in each season are about to wither, it is necessary to remove the residual flowers in time, which is conducive to the differentiation of flower buds in the next season, and it is better to spend more.
2. After winter, let gardenia spend the dormancy period after 1 month cold injury, then move it indoors, and keep the room temperature above 18℃ by methods such as increasing temperature and supplementing light, which can promote gardenia to bloom in winter and spring, and can be widely used as materials for various bouquets.
3. Potted gardenias are relatively moist. Keep the soil moist during the growing period, and pay attention to increasing the air humidity. Water more when it is hot and dry in summer; In spring and summer, spray leaves with clear water every morning and evening, and sprinkle water on the ground around the basin to increase air humidity; Water less in winter, but spray the leaves frequently to keep them clean.