What is the reason why asparagus fern leaves turn yellow? what to do?

Asparagus fern is a relatively elegant foliage plant. It is easy to maintain and has a unique shape, so it is loved by people. So what is the reason why asparagus fern leaves turn yellow? what to do? Let’s learn more about it below.

1. Too much light

Asparagus fern prefers a semi-shady environment. If it is exposed to strong light, it will stimulate the leaf cells, causing the chloroplasts to be injured and turn yellow. The solution is to place the asparagus fern in a dark place and spray water on the leaves appropriately.

2. Temperature discomfort

Asparagus fern likes a warm environment, and the suitable growth temperature is 15℃ to 25℃. If the temperature is too low or too high, it will affect the growth of asparagus fern and cause the leaves to turn yellow. Therefore, the temperature must be controlled reasonably. When the temperature drops in winter, the asparagus fern grown outdoors should be moved indoors as soon as possible; when the temperature drops in summer, the leaves of the asparagus fern need to be sprayed with water to maintain a certain air humidity, while providing appropriate shade.

3. Improper watering

Overwatering is one of the most common causes of yellowing leaves on asparagus fern . In addition, long-term lack of water, or incomplete watering, where only the soil on the surface of the pot is wet each time, will also cause the roots to absorb water, causing the leaves to turn yellow and dry. Asparagus fern itself is a plant that likes a humid growing environment, so when watering it, you must master the method of watering it when the soil is dry and then watering it when it is wet.

4. Improper fertilization

If too concentrated or unrotted fertilizer is applied, it will damage the roots and cause the leaves to turn yellow and fall off. You should use water to rinse the soil in the pot, dilute the fertilizer concentration, or immediately change the soil to save it. If asparagus fern is not fertilized for a long time, it will lose fertilizer and turn yellow, so asparagus fern needs to be fertilized appropriately.

5. Air pollution

Asparagus fern has high requirements for air quality. If the indoor air is seriously polluted, for example, there are large amounts of smoke, formaldehyde and other harmful substances, the leaves of asparagus fern will turn yellow. The solution is to keep the indoor air fresh and open windows regularly for ventilation.

6. Impact of pests and diseases

Usually, when the environment is not suitable, asparagus fern is susceptible to insect pests, the most serious of which is the red spider mites. The branches and leaves of asparagus fern invaded by it will be wrapped in white silk webs, and symptoms of drying and yellowing will appear. Generally, it can be controlled with some avermectins or compound preparations, such as avermectin or the better bifenazate, once every three days, three times is best, to avoid rebound.

In general, the overall maintenance of asparagus fern is not difficult, but improper management can also cause problems such as yellowing leaves, reducing its ornamental value. Therefore, when dealing with yellow leaves of asparagus fern, you should observe patiently and find out the root cause of the problem, and then take appropriate measures to solve it.