Rhododendron, also known as Rhododendron, Rhododendron azalea and Rhododendron azalea, is an evergreen or semi-evergreen deciduous shrub or small tree, with elliptic lanceolate leaves, alternate leaves, whole leaves, sparse surface, 2-6 clusters of flowers, mostly funnel-shaped and trumpet-shaped. Rhododendron in small pots enters the family and is placed on tea tables and flower stands for people to watch. It has been popular for nearly 10 years. People especially like the small pots of azaleas that can bloom in the Spring Festival. The plants are vigorous, the leaves are green, and the flowers are blooming, which can add splendor to the festival. The post-holiday management techniques of potted rhododendron are introduced as follows:

1. After potted rhododendrons wither, the pots should be changed in time, and new culture soil should be replaced at the same time (the ratio of peat soil to perlite is 3: 1), and the pH value should be adjusted to 4? 5~5? 5, timely cut off dense branches, residual branches, dead branches, cross branches, twigs, long branches and diseased branches. In the growing period, the unnecessary branchlets on the branches should be thinned out. When pruning, be careful not to cut the branches that need to be preserved, because many families of rhododendron leaves are born at the top of the branches. After flowering, new branches and a cluster of new leaves grow, and the old leaves fall off immediately, and then the terminal buds begin to differentiate into flower buds. Therefore, it is very important to leave strong branches, which is related to the number of flowers next year. After the new branches germinate, they can be trimmed and bundled, so that they gradually become "umbrellas", "towers" or other ornamental plant shapes.

Second, fertilization methods azalea fertilization should master the method of thin application. After flowering, the concentration of fertilizer can be slightly higher in the growth period of new branches, but heavy fertilizer should still be avoided to avoid damaging roots and leaves. Because the roots of rhododendron are thin and dense, the ability to absorb fertilizer is poor. If the fertilizer is too thick or not fully decomposed, it will cause rotten roots, dead leaves and even death. In order to make rhododendron grow normally, after changing pots, apply 1 times diluted liquid fertilizer, such as human excrement, bean cake and urea, to promote its germination and growth and increase branches and leaves; From late June to mid-August, when the flower buds begin to differentiate, it is necessary to apply 1 times of phosphorus and potassium fertilizer, such as potassium dihydrogen phosphate, bone meal, calcium superphosphate, etc. To promote flower bud differentiation; Apply 1 ~ 2 times phosphorus-based fertilizer after autumn to meet its growth and bud pregnancy needs.

Third, the watering essentials After replacing the flowerpot, the new roots of azaleas are weak, which is both afraid of drought and waterlogging. Pay great attention to watering to avoid falling leaves and affecting flowering due to too much or too little watering. Under normal circumstances, the basin soil should be used for both wet and dry purposes. Water 1 time in spring and autumn, once every 2 ~ 3 days. The temperature is high in summer, so water it every morning and evening 1 time. At the same time, sprinkle water on the leaves and the ground around the flowerpot to increase the air humidity. Because azaleas "like acid and avoid alkali", we should be careful not to pour alkaline substances such as soapy water into flowerpots. In rainy spring and typhoon season, the accumulated water in flowerpots should be poured out in time to prevent the roots from rotting.