What to Do When a Radermachera sinica Drops Its Leaves? Causes and Solutions for Indoor Potted Plants

Growing Techniques Jan 1, 1970 0 views

Radermachera sinica is a green plant widely grown in pots indoors. It is very popular for its emerald green color and beautiful leaves, but sometimes when we care for it improperly, we find that it drops its leaves, and in severe cases the leaves basically all fall off, leaving only a dry, bare trunk.

Temperature causes

Radermachera sinica likes warm, hot environments, and its optimum growing temperature is 20°C to 30°C. During the intense heat of midsummer, when the ambient temperature reaches above 30°C, it should be given appropriate shade with a frame, the environment and leaf surfaces should be misted more, or it should be moved to a ventilated, cool place with dappled shade for the summer. When late autumn arrives and the ambient temperature drops to around 10°C, it should be moved into a shed or indoors in good time.

Light causes

Radermachera sinica is a light-loving plant that can also tolerate slight shade; full sun and semi-shade environments are both acceptable. Its seedlings are relatively shade-tolerant, and in summer a frame should be set up to shade them. For potted plants, during indoor display they should be placed in front of a window with ample light or indoors. If it is placed in a dim indoor spot for a long time, it easily drops its leaves. For home potted plants, during the winter it can be placed in a higher spot in front of a window or on a balcony so that it receives plenty of light.

Water causes

During cultivation, the soil and the display environment are required to be relatively moist. During the seedling stage, the seedbed must be kept moist. In hot seasons, sufficient water must be supplied, and in hot seasons the plant should be misted 2 to 3 times a day. Plants kept outdoors for care in summer and autumn. Plants kept indoors in winter enter a dormant state, so they must not be watered too much, to avoid root rot.

Soil causes

For potted Radermachera sinica, a loose, fertile growing medium that drains and breathes well and is rich in organic matter should be chosen. It is usually mixed as garden soil : leaf mold : decomposed organic fertilizer : river sand = 5:3:1:1. During the growing season, loosen the soil once a month to ensure the roots are always in a well-aerated state. Generally, for small and medium plants grown as home potted plants, repotting can be done once a year in early April when they are brought out, to meet their soil fertility needs for a full year of growth.

Fertilizer causes

For potted Radermachera sinica, in addition to adding an appropriate amount of decomposed cake fertilizer and 3% multi-element compound fertilizer to the growing medium, topdressing should also be given continuously. During the growing season, a quick-acting liquid fertilizer can be applied once a month, usually decomposed cake fertilizer water. For a small number of home potted plants, or for large potted plants displayed in public places for a long time, a small amount of multi-element slow-release compound fertilizer granules can be buried and applied regularly, or a mixed solution of 0.2% urea plus 0.1% potassium dihydrogen phosphate can be used for watering.

Radermachera sinica dropping leaves. Causes of Radermachera sinica dropping leaves, what to do when Radermachera sinica drops its leaves?

Radermachera sinica is also called cai dou shu (Radermachera sinica), a tree of the genus Radermachera. Its requirements for the growing environment are high temperature and frequent rain, and ample sunlight; it fears cold and dislikes disturbed conditions. For cultivation, loose, fertile loam and sandy loam that drain well and are rich in organic matter should be used. Radermachera sinica flowers from May to September, and bears fruit from October to December.

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