Rhododendron is one of the representatives of plants Hi acidic, pH values from 5.5 to 6.5 as the best, I am pleased to climate cool, moist, well-ventilated environment, suitable for the growth temperature of 13 ℃ to 25 ℃, growing season to maintain the 60-70% The air relative humidity, relative humidity, when the Provisional flowering up to 80% or so. Rhododendron Yoshimitsu, but the bogey direct light, spring and autumn due to increase shade in the summer season to reach about 70% shading, and often to the leaf surface with water spray humidification, cooling, summer azaleas should be placed outside the conservation, to facilitate the ventilation. Hi Dan Rhododendron fertilizer, but the bogey concentrated fertilizer, manure handling facilities growing season to be thin, it is better manure, such as the bean water, horseshoe charge of water and all kinds of vegetables, chicken feathers, fish offal and other debris soaked in fermented liquid fertilizer are may be applying. Rhododendron fibrous roots, slender again weak, it can not stick heavy soil, hi loose, permeable, breathable and good acidic soil, the soil can be used in northern mountains, larch leaves earth, or artificial cultivation of soil preparation and other Fu Yetu . Flower behind to pruning, intended to make it even more beautiful pattern and control of flowering, cut one-year old branches can also be cutting propagation.

Rhododendron leaves positive if yellow, red bug spots on the back, for the red spider harm will be seriously fallen leaves, 40% of the triclosan can be used 1000 times mites alcohol spray, seven days time, except for three-consecutive The. If leaves yellow while veins remain green, and for iron-deficiency symptoms, can be sprayed once in about ten days of ferrous sulfate solution, the concentration of not more than 5 ‰, with a good vinegar and fermentation Taomi Shui there is a certain effect. There are other symptoms such as: leaves dull, reddish brown stem tip and gradually expanded, in order to direct light and poor ventilation, the temperature being too high, can improve the environment for prevention and treatment. If it got brown spot, available chlorothalonil, carbendazim, Kocide, thiophanate-methyl and other prevention and treatment. There are still leaves yellow or green, but gently touched the branches and leaves while they splashed down, and soon off the light, this is light, too dark, keep our noses to the; light is too weak, the air is too dry, air pollution, etc. look at the situation can be caused by the prevention and treatment. Rhododendron water are wilting and the falls, the new leaves whitening yellow root for the long-term water due to large bubbles, if the leaves wilt, it is still green and not easy to drop, but also promising major result of the water. Unequal in size or the leaf into a piece of dark spots, mostly black spot disease, caused by bacteria, multiple large due to the water, ventilation is poor, the light is too weak a combination of factors caused by bacteria infection, can change the environment and drug prevention, drug can refer to the brown spot conquer.