What should I do if the iron jasmine leaves turn yellow?
As a representative of strongly positive flowers, iron jasmine has its yellow leaf problem troubling many flower lovers. When the leaves change from dark green to light yellow, it often indicates a deviation in plant maintenance. This paper will systematically analyze the causes of yellow leaves and provide professional solutions from the four dimensions of light management, moisture control, temperature regulation, and pruning and maintenance. In-depth analysis of the causes of yellow leaves of iron jasmine caused by lack of sunshine Iron jasmine requires 6 - 8 hours of direct light every day and does not need shade in summer. When there is insufficient light, plants will show typical light deficiency symptoms: new leaves are thin, soft and yellow-green, and old leaves gradually fade into green. It is recommended to adopt full sunshine maintenance in spring and autumn, place southbound window sills in winter, and rotate the flowerpot 180 ° every half of the month to ensure uniform light reception. The dual hazards of water imbalance require the principle of "moistening without flooding": 1. During the growth period (April to September), keep the soil moist, and water needs to be replenished when the topsoil is 2cm dry. The winter water control cycle is extended to 7 - 10 days 3. Using dipping basin method to replenish water can avoid standing water. If the yellow leaves are drained after 15 minutes of immersion each time, if the roots rot, the basin needs to be changed immediately and the necrotic roots are trimmed. The stress response to sudden temperature changes is suitable for iron jasmine at 18 - 28 ℃, and the low temperature critical point is 8 ℃. Precautions for winter maintenance: ·Move indoors before the cold current arrives·Maintain the temperature difference between day and night <10 ℃·Avoid direct heating·Open windows at noon on sunny days for ventilation for 2 hours in case of frostbite, and yellow leaves need to gradually warm up. Do not treat them immediately at high temperatures. It is recommended to adopt the "three-three pruning method" for pruning countermeasures for unbalanced nutrient distribution: ① pruning after anthesis: retain 3 pairs of shortened leaves; ② pruning long branches: if more than 1/3 of the plant height, the top needs to be cut; ③ Cross-branch pruning: retain 3 The main branches are pruned and combined with potassium dihydrogen phosphate foliar fertilizer can effectively prevent yellow leaf regeneration.
Through a four-dimensional maintenance system of light regulation, precise water control, temperature monitoring, scientific pruning, and monthly application of chelated iron fertilizer, iron jasmine can remain oily and bright green leaves. It is recommended to establish a maintenance log to record environmental parameters and plant status, and gradually grasp the yellow leaf warning signals to keep your iron jasmine green all year round.