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Why Is My Basil Plant Light Green? (Solved)

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Plants are primarily classified as healthy when they have a green color. This classification is incredibly accurate for their leaves. For example, in the case of a basil plant, the green color is considered healthy.

However, it causes panic when it turns light green, and many cultivators begin to wonder the cause of this occurrence.

A Basil plant may change color to become light green for different reasons. These reasons may range from overwatering, an attack by plant pests such as aphids. The plants may also become light green due to disease or the insufficiency of Sunlight for it to sustain their greenness.

Why Are My Basil Plants Turning Light Green?

A Basil plant in its normal state possesses a deep green color. Though the plant may lose this deep coloration for several reasons, it would always regain its deep green coloration if treated until it gets back to normal.

The color to which a healthy green Basil plant turns absolutely depends on the kind of problem affecting the plant.

Yellowing of leaves, also called chlorosis, may be noticed on a plant that suffers from a lack of certain nutrients.

A basil plant may turn quickly from deep green to light green because of several varying reasons, including actions taken by the gardener or some natural phenomenon.

1. A basil plant may turn light green when suffering from overwatering. The amount of water added to the soil where Basil plants are being grown immensely affects the overall well-being of the Basil plant.

Both under-watering and over-watering of Basil plants may cause grave harm to the Basil plant. Overwatering causes the plant’s leaves to turn light green by drowning the plant’s roots, which subsequently rot.

The rot-infested plant roots cannot provide enough moisture and nutrients to the plant, which causes the malnourishment of the plant, which later on manifests in the leaves turning light green.

Therefore, it is highly advisable to ration the amount of water used to water a Basil plant to grow at its pace in an ideal environment.

2. A Basil plant may turn light green if plagued by pest infestation. These pests prey on the Basil plants, causing varying levels of harm and injury.

Some pests on the plant may cause the plant some difficulty in carrying out photosynthesis and thus cause the leaves to turn light green from nutrient deficiency.

These pests, including aphids and caterpillars, camp on the Basil plant and, if not controlled on time, spread to other plants in the garden, preventing them from achieving their full productivity potential.

3. Differing kinds of plant diseases cause different plant diseases which affect Basil plants.

Although various symptoms represent other plant diseases, turning once deep green Basil leaves light green may also signify the presence of plant disease.

When healthy Basil leaves start turning light green, there are quite a lot of possibilities that come into play.

There are chances that the root cause of this phenomenon may be things other than disease infestations.

Thus, before conclusions are drawn, you should conduct complete investigations to understand why these plant leaves change color. An example of a plant disease here is downy mildew.

4. Sunlight remains one of the most significant factors which determine whether a Basil plant would grow to reach its full productivity potential or not.

Conversely, the absence of the sun or deficiency of sunlight available to a Basil plant results in many defects in that particular plant.

This situation dramatically limits the Basil plant’s growth, development, and reproduction.

This condition may cause a reaction in the Basil plant, which manifests as a gradual change in color from its original green to light green.

Why Are My Basil Leaves Light Green?

Some Basil plants may possess perpetually light green leaves that form from the plant’s seedling stage.

This kind of situation occurs primarily due to natural circumstances or conditions of the Basil plants’ environment.

But, of course, this means that the conditions are not ideal for the basil plant to grow, produce and reproduce.

1. Basil plants may possess light green leaves when the environment in which they are grown is too hot or too cold. Therefore, Basil plants are susceptible to environmental factors.

If the prevailing environmental factors in an area do not match the requirements of the Basil plants, their leaves would most definitely become light green.

Therefore, the environment would determine how much food material the Basil plant produces during its lifespan.

2. An area that lacks soil nutrients would produce Basil plants with basically light green leaves. The green material in the plant gets more intense as the plant’s comfortability increases.

Thus, when a Basil plant does not exhibit that thick green leaf coloration, it may be highly lacking in nutrient consumption.

3. The quality of a particular soil is a significant determinant of whether the Basil plant that grows on that soil would be healthy or not.

For example, soils with high acidities or alkalinities do not support perfect growth and produce plants with light green leaves.

How Do I Make My Basil Greener?

When you first notice that your basil plant is losing its green, the first step is to determine the root cause of the problem.

Next, take a chill and examine the conditions in which the plants are grown. If there is something noticeably off, then you should investigate the issue.

Here are some things to do to regain the greenness of a Basil plant.

1. Expose the Basil plant to some moderate amount of direct sunlight. It has been discovered that it is the energy from the sun that binds the plant material together and aids the plant’s healthy growth and development.

Therefore, if some abnormalities are noticed on a Basil plant, such as a change in the color, this plant should be exposed to more sunlight if it was previously not given enough exposure.

The sunlight is an absolute necessity for the general well-being of a Basil plant and any plant at all.

2. Make use of an excellent organic fertilizer to supplement the soil. Basil plants may tend to get affected adversely by certain inorganic fertilizers, so this factor alone warrants that a proper organic fertilizer is used in aiding the growth of the Basil plant.

3. Water the Basil plants with moderate amounts of water. Just as earlier mentioned, too much water kills the Basil plant.

So, if a previously overwatered Basil plant has visibly started becoming light green, rationing the amount of water fed to the plant would work wonders in regaining the green of that Basil plant.


Because Basil plants are very conscious of their environments, this makes them ultra-sensitive to fluctuations in the conditions of the domain.

For example, the phenomenon where the deep green color of Basil leaves changes to light green occurs for a varying number of reasons discussed above.

Therefore, you should keep a close watch on the plant to prevent this from happening.


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