Why My Wisteria Plant Leaves Turn Yellow?

Yellowing of wisteria plant leaves is the most common issue faced by gardeners and common growers. Most growers frequently asked why my wisteria plant leaves turn yellow? Several reasons are present behind this issue. let’s check them!

wisteria is a hardy, long-living plant that is sometimes toxic to animals. Its pendulous cluster of flowers makes it the best choice for the garden.

Wisteria flowers bloom in shades such as white, pink, blue and purple. Sometimes the wisteria plant strangles the supportive structures around which it twists and damages them.

Wisteria has shiny dark green leaves. leaves of a plant clearly tell us about the health of the plant. Any unfavorable conditions in the surroundings cause changes in the shape and structure of leaves. Which ultimately affects the normal function of plants.

One such condition is the yellowing of leaves. These yellow leaves may turn brown if the stress-causing condition is not reduced. There are a number of reasons that cause the yellowing of Westeria leaves. these discolored leaves may be an indication of some underlying serious problem.

REASONS FOR WISTERIA LEAVES YELLOWING

The main reasons for the yellowing of wisteria leaves are as follows

1. Natural Reasons

Wisteria is a deciduous plant. It loses its leaves at the end of every summer. Before falling these leaves loses their green color and their leaves gradually change to yellow.

These changes mainly depend on an external factor such as change in temperature. So such a condition is not anything to worried about but if wisteria leaves become yellow during spring or at the beginning of summer then it is not a natural process.It must have some other reason that can lead to serious issues.

2. Moisture Stress

Water is the main requirement for plant survival. The life-supporting process for living organisms on earth is photosynthesis which is mainly dependent on plants. This plant tolerates many soil conditions. Generally, it requires little water.

Westeria plant requires plant until it is well established in its habitat. After that plants require water during the dry season. Westeria requires water once a week during the dry season.

a. Over Watering

Over-watering is the main cause of the yellowing of leaves. When the roots are completely covered by water it causes them to rot. Because the roots lack the oxygen required for respiration.As there is no space for oxygen to pass and reach the roots.

b. Under Watering

When your Wisteria plant faces scarcity of water then its leaves turn yellow. Its roots dry up. This scarcity affects plants main photosynthetic tissues.

As plant leaves are green because of their green pigments containing tissues mesophyll. so lack of water mostly destroys them. which leads to the yellowing of leaves.

3. Transplant Shock

If wisteria plant leaves become yellow along the margins or the tissues between the veins it is clearly a sign of transplant shock. this will leads to leaf scorch where the leaves yellow color ultimately becomes brown and dries out.

This will damage the main photosynthetic machinery of the plant and will affect the overall function of the wisteria plant.

4. Insects and pests

Insects and pests are the most common causes of a large number of diseases in garden plants. A Garden is a place where different types of plants are present together and insects can feast on a number of plants in the same place.

If your wisteria plant is present in the garden then aphids can easily attack its leaves and affect its color. Along with aphids, some other insect pests are stink bugs, squash bugs, fruit worms, etc. They cause some physiological change in plant leaves that leads to color change.

5. Cold and Heat Stress

Westeria plants can survive in all conditions but very hot and cold temperatures can cause changes in this plant. One such change is the yellowing of wisteria plant leaves. very cold or scorching temperatures can damage the leaves tissues and its shiny green leaf becomes yellow.

Sunlight duration is also very important for the health of plants. Its duration and quality both affect plants growth and morphology. when your plant is exposed to sunlight for a long duration it also affects its leaves morphology.

6. Fungal and Viral diseases

Many insects that attack wisteria plant leaves can pierce the leaves for feeding this creates an area where microorganisms such as fungi, viruses, or bacteria can attack. So this microorganism can change the leaf color and wisteria plant leaves turn yellow.

Phytoplasmas generally cause the yellowing of wisteria leaves. In such attack, the leaves become yellow and then eventually die back.

7. Nutrients deficiencies

Some of the elements that are present in the soil are important for plants. Their deficiency leads to a number of unhealthy conditions such as the yellowing of leaves.

The leaf appears green and healthy mainly because of nitrogen and magnesium in the soil. But when these macroelements are deficient in the soil then leaves green color disappears and wisteria plant leaves turn yellow.

8. Excessive Use Of Fertilizers

When we use fertilizers in excess amounts it causes some harmful changes in plants. One such harmful effect in the wisteria plant is a change of leaf color. The fertilizer contains an excess of macro and micronutrients and these nutrients in excess amount cause toxicity. As a result the leaf color changes to yellow and wilting of lower leaves also take place.

Solution For Wisteria Plant Leaves Turning Yellow

The yellowing of the wisteria plant leaf is an indication of an underlying problem that can lead to some serious problems. Below are some measures that can prevent your wisteria plant leaves from chlorosis.

Every plant has water requirement so do wisteria. But wisteria plants require plenty of water until they’re well established. After the establishment wisteria plants only need water during the drought period.

During such dry seasons water your wisteria plant once a week. Do not apply water directly to plant leaves. it will create a possible environment for diseases.

When you buy a new wisteria plant from a nursery or change its place inside your own garden try to check the new environment. carry out tests for soil PH or check for other factors such as soil pathogens and water requirement etc.

Also, take care of sensitive parts of plants during transplant such as roots. any injury to such part makes it impossible for the plant to take up water and nutrients and ultimately causes the yellowing of leaves.

During very hot weather mulch your plant. For mulching, you can use various materials such as leaves or grasses. The main purpose of mulching is to keep the soil temperature low around your plant to keep the root zone cool and avoid evaporation. But during the cold season use some old sheets to cover your plant.

Use fertilizers that have macronutrients as their main constituents. Nitrogen deficiency which is one of the leading causes of yellow may be full fill by that.

Do not overuse fertilizers. They cause toxicity when present in excess quantity.

If you notice any insects on your plant then use insecticides. Bacillus thuringiensis bacteria is one of the effective insecticides used against insects that attack wisteria plants.

Remove any unwanted plants present in the surrounding of your wisteria plant because they can cause allelopathic effects and take up all the essential nutrients from the soil.

Use fungicides in case of fungal infection. Remove the infected leaves by pruning this will allow better airflow. After pruning neem oil is best to apply so spray neem oil on the plants. After taking care of the above measures the green shiny color of wisteria leaves will be restored.