Lavender Plant Turning Gray? Don’t Panic! Here’s What to Do

A lot of gardeners struggle with keeping their lavender plants healthy and looking good. One common problem is that the lavender plant turning gray. 

There are a few things that can cause a lavender plant to turn gray, including overwatering, underwatering, pests, or diseases.

If your lavender plant is turning gray, the first thing you should do is identify the cause. Once you know what’s wrong, you can take steps to correct it. Some possible solutions include watering more often, using pesticides or herbicides, or transplanting the plant to a new location.

In this post, we’ll take a closer look at what causes lavender plants to turn gray and how you can prevent this problem in the future.

Note: If your lavender plant is turning gray, don’t panic. With a little bit of care and attention, it should be easy to restore its health and get it looking good again.

Lavender Plant Turning Gray

Fungal diseases causing lavender to turn gray:

Fungal diseases are one of the most common problems that lavender growers face.

These diseases can cause the leaves of the plant to turn gray, and they often thrive in moist conditions.

One of the most common fungal diseases that affect lavender is called botrytis spp.

This disease is often found on the foliage of the plant, near the base. The best way to prevent this disease is to make sure that your lavender plants are well-drained and not too moist.

If you do notice any symptoms of this disease, you have to act fast.

You should also avoid watering your lavender plants from above, as this can spread the disease.

The three reasons why this fungal disease occurs are:

1) Poor air circulation around the plant

One of the primary causes of such diseases is growing lavenders too closely to each other, which can inhibit air circulation between plants and leaves.

This creates conditions that are ideal for fungi and other pathogens to flourish, leading to problems such as botrytis spp.

To avoid these types of fungal diseases on lavender plants, it is important to grow them in full sunlight with a spacing of 2-3 feet between each plant.

This ensures adequate air circulation between the individual plants, helping to dry up any remaining moisture.

2) Overwatering

Lavender is a stunning and fragrant plant that is often used in gardens and perfumes. However, this beloved plant is susceptible to fungal disease if it is overwatered.

The main culprit of this problem is a type of fungi known as botrytis, which thrive in moist conditions.

This fungus can cause the leaves of the lavender plant to turn brown and rot away. In severe cases, the entire plant may die.

To prevent this problem, it is important to water lavender only when the soil is dry to the touch.

By allowing the plant to dry out between waterings, you can help to create a hostile environment for botrytis and other fungi. As a result, your lavender will be more likely to stay healthy and disease-free.

3) Wrong soil (well-drained soil is what you need):

This condition occurs when lavender plants are grown in soil that does not allow for proper drainage, leading to too much moisture in the root zone and an ideal environment for fungal growth.

The best way to prevent botrytis from affecting your lavender plants is to use well-drained soil or potting mix when planting them.

Using this kind of soil will keep your plants dry and healthy, helping them resist fungal infections like botrytis and thrive over the long term.

So, if you want your lavender plants to stay healthy and beautiful, be sure to choose the right type of soil for growing them!

Lavendar plant turning gray due to frost damage or subjecting to cold:

When winter comes, frost damage to lavender plants can be a major concern. This is because the high winds and freezing temperatures that are commonly experienced during this season can lead to graying stems and leaves, which in turn impairs the plant’s ability to absorb nutrients.

To prevent these adverse effects, it is critical to prune away any damaged parts of the plant after winter ends. This will allow new growth to emerge that is more resilient against harsh weather conditions.

In addition to pruning, it is also important to take measures to protect your lavender plants from frost damage before winter even arrives.

One effective strategy is to gradually acclimate them to cold temperatures by moving their pot into a location that receives less direct sunlight.

This will help them adapt more easily once colder weather sets in. You should also position the pot in a manner that can protect it from direct winter winds and frost.

Overall, with proper care and maintenance, lavender plants can thrive even throughout harsh winters, making them the perfect addition to any garden or landscaping design.


Overwatering your lavender plant can result in several problems, major among them being graying stems and leaves.

But how does an overwatered lavendar looks like?

When the leaves of your lavender plant begin to gray, it is a sign that the plant is not getting enough oxygen. This can happen when the roots are sitting in water for extended periods, causing them to suffocate.

In addition to graying leaves, overwatering can also lead to yellowing or dropping leaves, as well as stunted growth. If you notice any of these signs, it is important to change your watering schedule immediately. When in doubt, always touch the soil before watering to make sure it is dry.

Under-watering turning lavender plant gray:

Under-watering your lavender plant can result in several negative effects, including graying stems and leaves.

To avoid this, it is important to be cautious when watering your plant and to make sure that you are providing it with enough nutrients. Depending on the size and age of your plant, you should water it between 2 and 3 times per month to keep it healthy.

Additionally, adding compost or other organic matter around the base of your plant can help supply it with additional nutrients. With proper care, your lavender plant will thrive for many years to come!

Lack of pruning:

Lavender is a beautiful and fragrant plant that can add a touch of elegance to any garden. However, if lavender is not properly pruned, it can develop unsightly gray patches on its stems and leaves.

To prevent this, lavender should be pruned before winter and just before summer. When pruning, be sure to cut the plant in such a way that air can circulate it.

Additionally, deadheading (the removal of dying flowers) is important for keeping lavender looking its best.

Lack of nutrients:

Lack of nutrients is one of the primary reasons why lavender plants turn gray. To determine whether your soil is lacking in nutrients, it is best to use a soil kit.

The ideal soil pH range for lavender plants is from 6 to 7.5.

If the soil is too acidic, you can fix this by adding some lime to the soil mix. This will increase the pH level and make it more hospitable for lavender plants.

In addition to ensuring that the soil has the right pH level, it is also important to add Potassium to the soil mix. Potassium helps to intensify the color of the flowers, so if your lavender plant is not producing vibrant blooms, this may be due to a lack of Potassium in the soil.

If you are wondering why are my lavender flowers not purple, then potassium might be the reason.

If the soil is too nutrient-rich, on the other hand, you will need to add less fertilizer. Too much fertilizer can cause the lavender plant to become leggy and prevent it from producing flowers.

Incorrect pot

One of the most common mistakes people make with lavender is using the wrong size pot.

Lavender plants should be planted in a pot that is 12-16 inches wide and deep with drainage holes.

Otherwise, the plant will become waterlogged and may develop gray mold.

Additionally, it is important to choose a pot that does not have a tray to collect water. The tray will prevent the roots from absorbing the water they need, causing the plant to go gray.

By selecting the correct pot, you can ensure that your lavender plant stays healthy and vibrant for years to come.

How to treat lavender with gray foliage?

Step 1 – Prune the grey parts of your lavender plant

It is important to examine the plant from top to bottom and remove all parts of the problem.

To prune a greying lavender plant, you will first need to identify the stems that are dead or damaged.

Once you have identified these, you can use garden shears to cut them off at the base of the plant.

Between each cut, clean the pruners in or wipe them down with alcohol to prevent build-up.

It’s also important to keep a close eye on the roots. The roots should be firm, white, and healthy at all times.

To check for problems, gently pull back some of the soil from the base of the plant and examine the roots. If any are dark or soft, trim them away using sharp pruning shears or scissors.

Step 2: Examine, treat the soil, and replant

To effectively treat soil and prevent future plant problems, it is important to take a holistic approach.

This means ensuring that you are treating the soil itself, as well as the individual plants within it. 

If you have a grey lavender plant, it’s important to treat the soil to prevent fungi growth.

Fungi live in soil, so if you replant the lavender in the same soil, the problem will persist.

The best solution is to throw away the pot and start with a new potting mix that is well-drained soil.

When replanting, be sure to rinse the roots off old soil and spray fungicide inside the pot and the soil.

 It’s also important to ensure that the drainage is proper to prevent future fungi growth.

Step 3: How to take care of your lavender plant moving forward?

Water: It is important to water your lavender plant regularly, but be sure to avoid overwatering as this can cause the roots to rot and lead to issues with gray foliage.

You are only supposed to water lavender every 2 weeks.

Prune regularly: Be sure to prune your lavender plant every 6 weeks or so to prevent it from becoming leggy.

Sunlight: Lavender plants thrive in full sunlight and partial shade, so make sure to place your plant in an area that is exposed to plenty of sunshine.

Weed regularly: To prevent the growth of competing plants and prevent nutrients from being drawn away from your lavender plant, make sure to regularly weed the area around your plant.

By following these simple tips, you can ensure that your lavender plant stays healthy and vibrant for years to come.

FAQs: lavender plant turning gray

Is grey lavender dead?

No. If your lavender plant is turning grey, it may be a sign that it is not getting enough water or that the drainage in the pot is poor. However, it is not necessarily a sign that the plant is dead.

Follow the guide on the lavender plant turning gray.

How do you know if your lavender is dying?

If your lavender plant is wilting, has yellow leaves, or the stems are soft, it may be a sign that the plant is dying.

Also, check if the stems snap easily. That means, they are not brittle and lack nutrients.

Why does my lavender look like it’s dying?

There are several reasons why your lavender plant might be looking like it’s dying. It might not be getting enough water, sunlight, or nutrients.

It could also be a sign that the plant is overwatered, which can cause the roots to rot.

If you notice any of these signs, make sure to follow the guide on the lavender plant turning gray.

How to revive dying lavender plants?

To revive a dying lavender plant, you should first examine the underlying cause of the problem.

Some common causes of dying lavender plants include lack of water, poor soil conditions, and nutrient deficiencies.

Once you have identified the issue, you can take steps to remedy it. For example, if your plant is not getting enough water, you will need to water it more frequently.

If the problem is poor soil conditions, you may need to replant your lavender in fresh, well-drained soil.

And if the issue is a nutrient deficiency, you can try fertilizing your plant with a lavender-specific fertilizer.

Conclusion: lavender plant turning gray

Lavender plants turning gray can be caused by several factors, including poor soil conditions, lack of water or nutrients, or even overwatering.

To prevent or remedy this issue, it is important to take a holistic approach and address all potential causes.

You can do so by taking steps such as regular watering your plant, pruning it regularly, and ensuring that the soil is well-drained.

 By following these simple tips, you can ensure that your lavender plant stays healthy and vibrant for years to come.

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