White orchid, white and fragrant flowers, open in summer and autumn, long flowering period, green leaves, for the famous garden ornamental species, mostly planted as street trees. Flowers can be extracted from the essence or tea, can also be extracted from the preparation of extracts for medicinal purposes, there are qi to remove turbidity, cough and other effects. Rarely seen fruiting, mostly grafting propagation, with the yellow orchid, hilarious, fire heather, etc. for rootstock; also available aerial pressure strip or rely on the propagation. Native to Java, Indonesia, now widely planted in Southeast Asia. Cultivated in Fujian, Guangdong, Guangxi, Yunnan and other provinces and regions of China, and potted in the Yangtze River Basin provinces and regions, overwintering in greenhouses.

　　Cultivation techniques Soil family potted orchids, should choose loose, strong permeability and rich in humus soil cultivation. Usually, tile pots, alabaster pots (tanks) with good permeability or plastic pots with more holes in the bottom are used. It is better to have a certain amount of granular soil of different sizes in the pots to facilitate water penetration and air permeability. Change pots according to the size of the crown of the white orchid and the age of the tree for years and years and replace the pots and tanks of the appropriate size to facilitate the growth of the plant to flourish. The operation should wait for the potting soil to be slightly dry, tilt the pot (tank) slowly (or invert it), hold the pot with one hand, grasp the plant with one hand, and pour the orchid into the new pot. A small amount of loose soil should be put inside the new pot (tank) beforehand, then water it thoroughly and stabilise the planting. Lighting

　　From March to April every year, move the pots and tanks with white orchids outside and place them in a sunny place. In summer, when the temperature is high, you should use shade net or build a simple shade, so that the orchid can be exposed to the sun in the morning, but also avoid the strong light in the afternoon of summer (so as not to burn the branches and leaves due to sun exposure). Move it outdoors around the beginning and end of summer, put it in a sunny and ventilated place, and the sunlight needs to be more than 6 hours. Only enough light to grow well, insufficient light will be futile branches and leaves, less or no flowering. In the hot summer season, the intensity of sunlight, should be slightly sheltered, so as not to scorch the leaves and young stems.

　　Fertiliser in the peak period of growth of white orchids (usually in May and June or July and August every year), should be about every half a month to the white orchid flower fertilizer, or about 20 intervals of a small amount of nitrogen, phosphorus, potassium composite fertilizer, each time 2 grams to 6 grams. Specific operation is: first with a small shovel will be the pot of soil scratch a few longitudinal, horizontal small ditch, and then the fertiliser slowly sprinkled into the ditch, and then covered with topsoil in the pot, watering a little water. So that the fertiliser with each watering and gradually penetrate into the roots of the plant, do not spread the fertiliser directly to the roots, so as not to cause the soil around the roots of fertilizer is too heavy and cause "root burning". Thin fertiliser, cake fertiliser is good, no fertiliser in winter, after the new shoots start to June, every 3-4 days watering 1 time fertiliser, July-September every 5-6 days watering 1 time fertiliser, after a few times of fertiliser should be discontinued 1 time.

　　From the beginning of moving outside the room to the end of June, every 7-10 days to water alum fertiliser, so that the soil is slightly acidic. Flowering period can also increase the application of - times of fast-acting phosphorus fertiliser, in order to make it spit fragrance unceasingly.

　　Watering Watering is the key to maintaining a good orchid. Orchids should not be watered too hard, too much. The correct watering method should be: moisten the soil in the pot thoroughly at one time, and when the soil in the pot is slightly dry, there is no need to water. Remember not to water every day, but you can frequently spray the leaves with a small spray bottle. In summer, should be no less than three or four times a month to water thoroughly (plus spray water on the leaves). The easier way to get the hang of this is to water whenever you see the leaves of the alstroemeria drooping. Water thoroughly two or three times a month in autumn and once or twice a month during the winter months.

　　Because of the fleshy roots, they are afraid of standing water and do not tolerate dryness. Spring out of the room watering 1 time, and then every other day watering 1 time water; summer morning and evening 1 time, too dry shall spray foliar water; autumn 2-3 days 1 time; winter water withholding, as long as the potting soil is slightly moist can be; after the rain pouring to the stagnant water in a timely manner. Prevent smoke pollution, keep the foliage clean, if necessary, foliar spray washing, in order to facilitate the normal development and growth of the plant.

　　White orchid, flowers white fragrance, summer and autumn open, long flowering period, leaf colour green, for the famous garden ornamental species, more planted as street trees. Flowers can be extracted from the essence or tea, can also be extracted from the preparation of extracts for medicinal purposes, there are qi to remove turbidity, cough and other effects.

　　Temperature is not cold hardy, except in southern China, other regions should be in the winter into the room maintenance, the minimum room temperature should be maintained above 5 ℃, out of the room time in the Qingming to the rain is appropriate. Do a good job of frost protection and warmth, daytime room temperature is maintained above 12 degrees, the evening is not less than 6 degrees, otherwise susceptible to low-temperature cold damage. Air circulation, and keep the potting soil moist, in order to safely overwinter. Pruning before entering the room, should be Jian removed dead branches, diseased branches, long proud strip and overcrowded branches, to minimise the plant's nutrient consumption; out of the room can be appropriate to remove the lower part of the branch of the old leaves, is conducive to promote the birth of new branches. In addition, also need to pay attention to aphids and other harm to shoot tips, must be timely control.