8 Reasons Why Rosemary Leaves Turn Yellow

Are you a proud owner of a rosemary plant and have seen the leaves start to turn yellow? If so, you may be curious as to what could be the root of this problem. Rosemary Leaves Turn Yellow can be attributed to various factors. We’ll look at eight common reasons why rosemary leaves turn yellow in this in-depth study. We’ll examine each of these reasons in detail, suggest workable alternatives, and provide advice on how to resuscitate your rosemary plant. So let’s explore and discover the secrets hidden in those golden leaves!

Why is my Rosemary Turning Yellow?

Rosemary Leaves Turn Yellow due to factors such as excess nitrogen, overwatering, humidity, slow-draining soils, lack of sunlight, pot-bound roots, incorrect soil pH, and pest infestations. By taking care of these problems, you may help the plant live again and have its beautiful green color back.

Reasons for Yellowing Leaves Solutions
Excess nitrogen in the soil Use balanced fertilizers with lower nitrogen content
Overwatering, humidity, or slow-draining soils Allow the soil to dry out between waterings
Lack of sunlight Place the plant in a sunny location or provide artificial lights
Pot-bound roots Repot the plant into a larger container
Incorrect soil pH Adjust the pH using soil amendments or organic matter
Insect pests Treat the plant with organic insecticides or insecticidal soaps
Nutrient deficiencies Fertilize the plant with a balanced, slow-release fertilizer

High Fertile Soil Causing Rosemary Leaves to Turn Yellow

The primary reason for Rosemary Leaves Turning Yellow is excess nitrogen in the soil. When the soil has an excess of nitrogen, rosemary, a plant that loves lean, well-draining soil, may experience browning leaves. This nutritional imbalance may prevent healthy root growth and cause yellowing of the leaves. You may solve this problem and aid in restoring the health and vitality of your rosemary plant by using balanced fertilizers with a reduced nitrogen concentration.

here are the explanation of the reasons:

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Excess Nitrogen in the Soil

Rosemary is a hardy plant that grows best in rocky, draining soils. However, excessive nitrogen in the soil might result in yellowing of the rosemary leaves. A plant’s nutritional balance becomes unbalanced when there is an excess of nitrogen because it promotes leaf growth but inhibits healthy root growth.

Consider using a balanced fertilizer with less nitrogen to resolve this problem. This will provide your rosemary plant the nutrients it needs without giving it an excessive amount of nitrogen.

Incorrect Soil pH

Your rosemary plant’s health is highly dependent on the pH of the soil. Ideal soil for rosemary has a pH between 6.0 and 7.0, which ranges from slightly acidic to neutral. The leaves may become yellow if the soil gets excessively acidic or alkaline.

Use a soil testing kit, which is readily accessible at garden stores, to check the pH of the soil to ensure it is ideal for your rosemary. You may adjust the pH if it is beyond the appropriate range by adding organic matter or by utilizing soil amendments made particularly for balancing pH levels. Maintaining the proper pH can help avoid yellowing leaves and encourage a healthy rosemary plant.

Why is my Rosemary Turning Yellow?

Over Watering, Humidity, or Slow Draining Soils

There are several factors that might cause adverse circumstances for your rosemary plant, resulting in yellowing leaves, including overwatering, excessive humidity, and slow-draining soils. Let’s go into more depth about each of these factors.


Once established, rosemary is a drought-tolerant plant that needs less water. Rosemary Leaves may turn yellow also due to overwatering, which can also cause root rot, oxygen deprivation, and nutritional inadequacy. Additionally, excessive moisture fosters the development of fungi and root infections.

Before watering again, let the top few inches of the soil dry off to avoid overwatering. In order to avoid water from building up around the roots, make sure the container or planting location has enough drainage. When it comes to rosemary, keep in mind that it’s better to undersea than overwater!

Slow Draining Soils

Another typical reason for yellowing rosemary leaves is poor soil drainage. Too much water in the soil may cause root rot, oxygen deprivation, and vitamin deficiencies, which eventually cause the leaves to turn yellow.

Add organic matter to the soil, such as compost or perlite, to promote drainage. These improvements to the soil’s structure will make it easier for excess water to drain away from the roots. As an alternative, you might use well-draining potting soil and plant your rosemary in a raised bed or container.


Rosemary plants enjoy a climate that is somewhat dry and has excellent ventilation. Without enough ventilation, continuous exposure to excessive humidity will cause your rosemary to become water sensitive, which can result in leaves turning yellow.

Place your rosemary plant in a location with sufficient air circulation to lessen the effects of dampness. Consider using a fan or opening windows to promote ventilation if you’re growing rosemary inside. To help stop the yellowing of the leaves brought on by excess humidity, try making the area surrounding the plant drier.

How to Resolve Yellow Rosemary due to Water Sensitivity

You may take action to resolve the problem and restore the health of your rosemary plant if it is displaying water sensitivity, which is indicated by yellowing leaves in a humid atmosphere.

First, choose where your rosemary plant will be. Consider moving it to a location with improved ventilation if it is currently located in a space with little air flow. By doing this, you may lessen the harm that excessive humidity can do to your plant.

Next, make sure the soil has enough drainage. To increase drainage, add organic matter or perlite to the soil if it holds too much rainwater. This will stop water from collecting around the roots and escalating the problem with water sensitivity.

Finally, keep an eye on your irrigation methods. Avoid overwatering and let the soil dry up in between waterings. Keep in mind that rosemary prefers a somewhat dry environment, therefore it’s important not to keep the soil too wet in excess.

Your rosemary plant may overcome its water sensitivity and restore its brilliant green color by addressing these factors.

Other Possible Causes

While very rich soil and water-related factors are often to blame for rosemary leaves turn yellow, a number of other factors may also play a role. Let’s examine some more reasons as well as their corresponding remedies.

Lack of Sunlight

Rosemary needs at least six hours of direct sunshine each day. Weak growth and withering, yellowing leaves might result from insufficient sunshine. If your rosemary plant isn’t getting enough sun, think about shifting it to a more sunny spot or installing grow lights.

Pot Bound Rosemary Plant

Growing rosemary in pots might cause the plants to eventually become “pot-bound,” with their roots taking up the whole container. This limits nutrient intake and water absorption, which causes the leaves to turn yellow.

To fix the problem, carefully remove the rosemary plant from its container and look at the root structure. If the roots are tightly packed, it’s time to repot the plant into a bigger container. This will give the roots plenty of room to spread out and encourage strong development.

Soil pH and Yellow Rosemary Leaves

For the health of your rosemary plant, maintaining the ideal soil pH is crucial. The best soil is neutral to slightly acidic, although too acidic or alkaline soil may make leaves yellow. The primary reason of rosemary leaves turning yellow is not, however, alkaline soils, it is crucial to remember.

Test the soil often for pH and, when necessary, correct it with organic matter or soil amendments. You can avoid yellowing leaves and encourage a healthy rosemary plant by keeping the proper pH.

Insect Pests

Spider mites and aphids are two insect pests that may harm rosemary plants by infesting them. These bugs damage the foliage and cause yellowing of the leaves by feeding on the plant’s sap.

Regularly check your rosemary plant for pest activity to prevent infestations. If any, treat the plant right away with the proper organic pesticides or insecticidal soaps. In order to organically reduce pest populations, you may also introduce beneficial insects like ladybugs or lacewings.

Key Takeaways

  • Rosemary leaves turn yellow can be caused by various factors, including high-fertile soil, overwatering, humidity, slow-draining soils, lack of sunlight, pot-bound roots, incorrect soil pH, and insect pests.
  • Rosemary requires pH values between neutral to slightly acidic, lean soils with adequate drainage.
    To avoid water-related problems including root rot and water sensitivity, avoid overwatering and make sure sufficient drainage is in place.
  • Give your rosemary plant enough sunshine, and keep it away from locations that are shaded.
    Check your plant often for insect pests and take the necessary action to eradicate infestations.


Now that you are aware of the several reasons why rosemary plants’ leaves may be fading, you can take proactive measures to revitalize your herb and bring back its vibrant green color. Don’t forget to evaluate the particular issues impacting your facility and implement the necessary fixes. Your rosemary plant will quickly flourish with a little care and attention, giving you fragrant leaves and aromatic tastes for your culinary pleasures.

How do you revive a dying rosemary plant?

There are methods you may do to resuscitate your rosemary plant if it looks to be dying or to be displaying indications of deterioration. Let’s look at some practical methods for reviving your ailing rosemary.

Assess the Plant’s Condition

Examining a dying rosemary plant’s general health is the first step towards reviving it. Watch for damage indicators include wilting leaves, yellow or brown leaves, and stunted development. You may more accurately choose the essential steps to follow by being aware of the amount of the plant’s degeneration.

Address Watering Practices

A typical reason for plant deterioration is improper watering. Reviewing your watering procedures is important if your rosemary plant is dying. Make sure you’re not drowning the plant or overwatering it.

Underwatering may cause dehydration and nutritional shortages, while overwatering can cause root rot and smother the roots. Follow these recommendations to find the correct balance:

  1. Regularly stick your finger approximately an inch deep into the soil to check the moisture level. If the soil feels dry, it’s time to water; if it’s still wet, wait.
  2. Deep but seldom water your rosemary. To avoid soggy situations, let the soil somewhat dry out in between waterings.
  3. Use well-draining soil and containers with drainage holes to ensure appropriate drainage.
  4. Avoid overhead irrigation since it might encourage the spread of fungi. Water the plant at the base instead.

You may give your fading rosemary the proper quantity of moisture by altering your watering procedures.

Check Soil and Fertilize

Poor soil conditions and nutritional shortages may cause a plant to wither. To find any imbalances or inadequacies, examine the pH and nutrient levels of the soil. With a pH between 6.0 and 7.0, rosemary favors slightly acidic to neutral soil.

If the pH of the soil is out of equilibrium, adjust it by adding organic matter or particular soil additions. To replace vital nutrients, fertilize your rosemary plant with a balanced, slow-release fertilizer as well. Apply rates and frequency should be as directed by the manufacturer.

Pruning and Propagation

Consider cutting back the many dead or damaged branches on your rosemary plant. In addition to removing the undesirable components, pruning encourages new development. Make clean cuts with clean, sharp pruning shears to ensure healthy plant healing.

To grow fresh rosemary plants, you may also take healthy cuttings from the branches you’ve clipped. Remove the lowest leaves from 4- to 6-inch stem cuttings of strong growth, then dunk the cut end in rooting hormone. Keep the cuttings in a warm, well-lit area and plant them in a potting mix that drains properly. These cuttings will form roots and become new rosemary plants with the right care.

Provide Adequate Sunlight and Temperature

Rosemary plants like warm weather and direct sunlight to grow. Relocate your fading rosemary to a location with at least six hours of direct sunshine each day if it is not getting enough light. To encourage healthy development, make sure the temperature surrounding the plant never falls below 60°F (15°C).

Monitor and Control Pests

Pest insects may make a dying rosemary plant even more vulnerable. Keep an eye out for pests like mealybugs, aphids, or spider mites on a regular basis. If you find an infestation, you should treat the plant with natural pesticides or insecticidal soaps. In order to organically reduce pest populations, you may also introduce beneficial insects like ladybugs or lacewings.

Be Patient and Provide TLC

A fading rosemary plant requires time and persistence to revive. Follow the suggested maintenance procedures religiously, keep an eye on the plant’s development, and give it careful loving care. Make sure you continue to pay attention to the plant’s demands and modify as necessary.

Keep in mind that not every plant may be rescued, particularly if the damage is extensive or the root system is damaged. You may offer your rosemary plant the greatest chance of recovering and growing once again by adhering to these revival techniques.


Why does my rosemary look like it’s dying?

There are a number of reasons why your rosemary plant can seem to be dying. Overwatering, underwatering, nutritional shortages, poor soil drainage, a lack of sunshine, insect infestations, and illnesses are some common reasons. You may find the root of the problem and take the necessary action to resolve it by evaluating the particular circumstances impacting your rosemary plant.

Should I remove brown leaves from rosemary?

The removal of brown leaves from your rosemary plant is, in fact, advised. Brown leaves are a sign of badly damaged or dead foliage. You can improve airflow and stop the spread of illness by removing these leaves. Make precise cuts close to the stem’s base using clean, well-maintained pruning shears. In order to stop any illnesses from spreading to healthy foliage, be sure to properly dispose of the removed leaves.

How do you salvage a dying rosemary?

To save a dying rosemary plant, do the following actions:

  1. Examine the general health of the plant and identify the underlying problems.
  2. To provide the proper quantity of moisture without overwatering or underwatering, adjust your watering techniques.
  3. In order to get the soil back in balance, check the pH and nutrient levels.
  4. To encourage new development, prune back branches that are dead or damaged.
  5. Create new plants by propagating wholesome cuttings.
  6. Make sure the plant gets enough sunshine and warm weather.
  7. Effectively monitor and manage pests.
  8. Be patient and persistent while giving them the time they need to recuperate.

You may improve your rosemary plant’s chances of survival by addressing these factors and giving it the attention it needs.

How do you green up rosemary?

Take into account the following advice to promote your rosemary plant’s healthy, green growth:

  1. Make sure your rosemary gets enough sunshine. Put it somewhere that receives direct sunshine for at least six hours every day.
  2. Keep up good watering habits. To avoid overwatering or waterlogged situations, let the soil somewhat dry out in between waterings.
  3. To provide vital nutrients, fertilize your rosemary using a well-balanced, slow-release fertilizer. Apply rates and frequency should be as directed by the manufacturer.
  4. Regular pruning will encourage new, healthy growth by removing dead or damaged growth.
  5. To avoid damaging the leaves, look for pests and treat any infestations right away.
  6. Keep an eye on the pH of the soil and make appropriate adjustments to keep it balanced or slightly acidic.
    Maintain the plant in a warm atmosphere above 60°F (15°C) to provide ideal temperature conditions.

You can encourage lush, green growth and make sure your rosemary plant flourishes by putting these methods into action.

[The article/content is first published by Lotusmagus.com website.
Lotusmagus is a website about plants and flowers by Amelia Clark. Copyright Marked]


Yellowing rosemary plant leaves are concerning, but with the appropriate knowledge and care, you can revive your herb and bring back its vitality. You may take the necessary steps to rescue your rosemary plant by addressing the possible reasons of yellowing leaves, such as high-fertile soil, water-related factors, a lack of sunshine, pot-bound roots, an inappropriate soil pH, and pests.

Never forget to evaluate the particular circumstances impacting your plant and modify your care procedures as necessary. You can bring back your dying rosemary and take advantage of the beauty and uses of this fragrant herb in your garden or kitchen with perseverance, commitment, and the advice in this article.

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Amelia Clark

I'm Amelia Clark, a seasoned florist and gardening specialist with more than 15 years of practical expertise. Following the completion of my formal education, I dedicated myself to a flourishing career in floristry, acquiring extensive understanding of diverse flower species and their ideal cultivation requirements. Additionally, I possess exceptional skills as a writer and public speaker, having successfully published numerous works and delivered engaging presentations at various local garden clubs and conferences. Social Profile: LinkedIn  YouTube  Pinterest Facebook