Reasons for Yellowing Leaves on Night-blooming Jasmine and How to Fix Them
Night-blooming jasmine is also known as night fragrant flower, night orchid fragrance, night clove, thousand-mile fragrance, etc. It is a weak climbing shrub of the genus Cestrum in the family Apocynaceae, with fragrant flowers that are especially strong at night, and is often cultivated for ornamental purposes. However, during cultivation, yellowing of the leaves often occurs and people do not know what to do. Let us take a look together below at what to do when night-blooming jasmine leaves turn yellow!
Yellowing caused by overwatering
The young leaves at the top of night-blooming jasmine turn pale yellow, the old leaves also gradually turn yellow, and the new shoots wither. This is because overwatering, rain, or excessive watering causes the soil in the pot to become too wet, the soil to lack oxygen, and the fibrous roots to rot. The correct approach is to loosen the soil frequently and control watering.
Yellowing of leaves caused by lack of water
The color of the leaves at the top of night-blooming jasmine is normal, but the lower leaves gradually dry, turn yellow, and fall off from the bottom upward. This is generally caused by the pot soil being too full, making it impossible to water thoroughly for a long time, which causes the lower leaves and branches to age. Excess pot soil should be removed appropriately, and watering should be done in proper amounts to keep the soil moist.
Yellowing of leaves caused by lack of fertilizer
The leaves of night-blooming jasmine are thin, tender, and yellow, generally caused by the plant being large while the pot is small, or by not repotting or changing the soil for a long time, resulting in insufficient fertilizer. Fertilizer and water should be increased gradually, but be careful not to make them too concentrated. Potted flowers should be repotted once every one to two years, and tree bonsai once every 2 to 4 years. When repotting, add a small amount of base fertilizer at the bottom of the pot and replace part of the soil with new soil.
Yellowing of leaves caused by fertilizer damage
When night-blooming jasmine shows uneven, unopened leaves, thick new leaves, and yellowing old leaves, it is mostly caused by too much fertilizer. Water frequently, pause fertilizing, and you can sow some vegetable seeds or other seeds in the pot. After the seedlings emerge, pull them out to consume the excess fertility in the pot.
Yellowing of leaves caused by pests and diseases
Yellow spots appearing on night-blooming jasmine are due to damage by scale insects. Rough, dry, yellow leaves are due to damage by red spider mites, and can be sprayed with a 1,000-fold dilution of 70% trichlorfon or 40% dimethoate diluted with water 2,000 times. Leaf yellowing caused by a virus will quickly spread in patches, so the affected leaves should be removed and burned promptly, then carbendazim or Bordeaux mixture should be sprayed for prevention and control. Do not spray excessive amounts of pesticide, otherwise pesticide damage may also occur.
Yellowing caused by insufficient light
When night-blooming jasmine is placed indoors in a place without sunlight for a long time, its leaves easily turn yellow. Some other sun-loving plants such as jasmine and white orchid will also develop yellow leaves if there is insufficient light. Conversely, some plants that prefer cool environments, such as Chinese evergreen, fuchsia, and chloranthus, will also develop yellow leaves and drop them if exposed to high temperatures and strong sun with improper shading.
Summary: That is our introduction to what to do when night-blooming jasmine leaves turn yellow. We should know that there are many reasons for the leaves of night-blooming jasmine to wither and turn yellow, and the characteristics of the yellowing also differ, so analysis should be made according to the specific situation, and judgment and treatment should be made after comparison.