What to do if the leaves of small-leaf gardenia turn yellow

Iron deficiency in Gardenia jasminoides

symptom

When the plant is iron deficient, it first shows up on the young leaves. The overall performance of the plant is as shown in the figure below. The leaves gradually turn green from the edges to the veins. In severe cases, the veins turn green, and eventually the leaves become scorched due to lack of water.

Solution

Water the soil every 10 days with 500 times diluted ferrous sulfate or black alum water.

Magnesium deficiency in Gardenia jasminoides

symptom

Unlike iron deficiency, the symptoms of magnesium deficiency in plants first appear on the lower old leaves. The lower leaves lose their green color and turn yellow, but the upper leaves remain green. In severe cases, the entire plant loses its green color.

Solution

Make up for what you lack. For the case of magnesium deficiency, it is recommended to spray 1% to 2% magnesium sulfate solution on the leaves, depending on the condition of the plant, about once every 10 days. After the situation is alleviated, reduce the dosage and extend the application cycle. Because if the plant absorbs too much magnesium, it will hinder the development of xylem in the roots and stems.

Small-leaf gardenia fat yellow

That is, excessive application of fertilizers causes the soil pH to increase, resulting in yellow leaf symptoms.

symptom

The leaf veins lose their green color and turn yellow, but the surrounding leaves remain green; or after fertilization, the leaves as a whole lose their green color and even become dry and yellow.

Solution

Irrigate the roots with plenty of water and wash the roots by removing the pot to wash away as much excess fertilizer elements in the soil as possible.

The soil in the pot of small-leaf gardenia is too wet

This situation most often occurs among novices. Usually, flower lovers over-water the flowers after buying them, which will cause the old leaves to turn yellow.

symptom

The newly purchased gardenias have yellow edges on old leaves but green veins. Many of these are caused by sudden changes in the environment.

Solution

Remove the yellow leaves and wait for new leaves to grow.

Small-leaved Gardenia exposed to the sun in summer

Under excessive sun exposure in summer, not only will the leaves of small-leaf gardenia turn yellow, but sunburn spots will also appear.

In fact, soil, water, light, ventilation, and humidity complement each other and require all-round consideration and comprehensive management.