What causes the leaves of the golden-edge Daphne (Daphne odora 'Aureomarginata') to turn yellow?

The golden-edge Daphne is a variety of Daphne, and there has long been the saying “the peony is the most beautiful flower in the land, but the golden-edge Daphne is the finest of all,” which shows that the golden-edge Daphne is the finest among Daphne flowers. The flowering period of the golden-edge Daphne happens to fall during the Spring Festival, and the flowering period lasts as long as two months. When grown, it can also bring some festive color to the Spring Festival. Although the golden-edge Daphne is a flowering ornamental plant, if its leaves turn yellow we must not ignore it, because yellowing leaves are naturally a sign that the plant is unhealthy. Below, Qinnong Web will introduce to you what is going on with the yellowing leaves of the golden-edge Daphne, and what the causes are.

1. Incorrect soil pH

The golden-edge Daphne likes to grow in relatively loose, fertile, humus-rich acidic soil. If the chosen soil is strongly alkaline, it will cause the leaves of the golden-edge Daphne to slowly turn yellow.

Solution:

The soil pH needs to be changed. You can directly go to a flower shop to buy acidic soil, then transplant the golden-edge Daphne into the new soil. If you do not want to transplant it, you can also add sulfur to the current soil. Usually we choose ferrous sulfate solution, which can both change the soil pH and increase soil fertility, achieving two goals at once.

2. Excessive light

The golden-edge Daphne likes sunlight, but fears high temperatures and strong sun. In summer, the plant should be placed in a cool, ventilated environment, or an environment without direct sunlight. If the sunlight is too intense or there is no sunlight, it will cause the leaves to turn yellow.

Solution:

If the light is too strong, then naturally you should move the golden-edge Daphne to a cooler location, but since the golden-edge Daphne also cannot be completely kept from sunlight, it is best to move it to a place with relatively sufficient indirect light.

3. Temperature too low

The golden-edge Daphne has relatively poor cold resistance. If the temperature is too low, the plant's growth is inhibited, and the leaves very easily turn yellow and fall off.

Solution:

When growing the golden-edge Daphne in winter, it needs to be moved indoors to a sunny spot in advance, ensuring the room temperature is above 5°C, so that the golden-edge Daphne can survive the winter safely.

4. Improper watering

The golden-edge Daphne likes shade and fears waterlogging, so when grown in pots, the amount of watering must be controlled. When the potting soil is too wet, it easily causes root rot, leading to root rot and stem rot, causing the leaves to turn yellow.

Solution:

If the golden-edge Daphne has already developed root rot, then the original soil can no longer be used. It needs to be replanted with clean, sterilized potting soil, placed in a cool, ventilated place, and watered reasonably.

5. Improper fertilizing

The golden-edge Daphne likes fertilizer, especially well-rotted organic fertilizer, but the amount must be right and fertilizing must be frequent. If too much fertilizer is applied and water is not given in time, it easily causes fertilizer burn, causing the leaves of the golden-edge Daphne to turn yellow.

Solution:

Before fertilizing, it should be diluted. The fertilizer can be well-rotted soybean cake fertilizer water. At the same time, when fertilizing, be careful not to get fertilizer on the leaves.

6. Pests and diseases

If the golden-edge Daphne is not cared for properly, it is very easily troubled by pests and diseases. With fusarium wilt or leaf spot disease, the leaves will turn yellow and dry up.

Solution:

During the period when the disease occurs, spray the appropriate pesticide in time, once a week, spraying or drenching the roots 5 to 6 times in a row, and the effect will be relatively obvious. In addition, crushed garlic cloves can be buried in the soil, which can have a sterilizing effect.

The above is the introduction compiled by Qinnong Web on the causes of yellow leaves appearing on the golden-edge Daphne, and we hope it can provide you with some help. The golden-edge Daphne is a relatively delicate plant, and growing it requires some experience and skill. A moment of carelessness will bring a series of problems one after another, so you must be careful when growing it!