This post may contain affiliate links. If you make a purchase using one of these links it means we may earn a small commission at no extra cost to you. Learn More

Hydrangea Leaves Turning Brown: Causes & Fixes

Since we are in the latter days of summer, I get a bit sad each day, which honestly greatly disappoints me, since I enjoy the mood that spring and summer convey to most of us. For me, it is enough to wake up in the morning and just see my flowers and all the other plants flowering and grinning at me.

This is why I always feel more enthused and driven in the summer and have more power to achieve anything. Therefore, this is the ideal method for me to start the day. And I believe it adequately explains why I find it depressing that the summer is coming to an end.

I mentioned flowers and plants, so let’s talk about some major problems that might affect our plants. The solution is usually pretty simple when we detect anything is amiss with our plants. Finding the cause should come first, followed by a solution. Continue reading this post to learn more about how I achieved it.

Why is my Hydrangea Leaves Turning Brown?

One of the most stunning plants that you absolutely must have in your yard, in my opinion, is the hydrangea. This plant should be planted if you want your garden to appear beautiful and vibrant because it comes in a variety of colors. I may be likened to this plant by an array of hues that includes vivid pinks, brooding blues, stark whites, and everything in between.

However, occasionally you could notice that these lovely hues start to fade and turn brown. To be honest, I’ve experienced this a lot, and each time I did, I was devastated. But there are other causes for this problem, so it doesn’t just happen by accident. I imagine that most of you who have these lovely plants in your yard have dealt with this type of issue, making it a very familiar one.

The time has come to ascertain the cause of this, determine how to address the problems, and determine what more needs to be done to protect these lovely plants.

Overwatering and Underwatering

You should always be extremely cautious while watering Hydrangea since overwatering usually results in a variety of problems. If you notice that the leaves of your hydrangea are becoming brown, the most likely causes are overwatering, root rot, and maybe some fungal illnesses. The cells will burst and die if the water level is too high, which will prevent your plant from growing.

The majority of the time, underwatering is another problem that results in browning leaves. Because of the difficulty, the root system will have absorbing hydration and other nutrients in exceptionally dry soil, a lack of water and nutrients will cause the leaves to suffer and gradually become yellow or brown.

The only thing we need to do to be able to prevent problems like these is to water the plant according to a schedule and to regularly examine the soil to see if it is dry or wet before deciding whether to water or not. If the issue has arisen, you should first examine the roots to determine whether they are healthy; if not, you should remove the unhealthy roots, transplant the plant into a new pot, and begin giving it the right amount of water.


Pests that feed on, damage, or deposit their eggs on stems and leaves include scales, slugs, aphids, beetles, and fruit worms. Therefore, if your hydrangea has a pest infestation, you will most likely see the leaves turning brown. It is crucial in this situation to be able to quickly identify the issue.

If you’ve observed that your hydrangea has a pest infestation, all you need to do to get rid of the bugs is clean your plant and spray the leaves with insecticides and neem oil.

Fungal Diseases

The greatest thing we can do is attempt to protect Hydrangea from fungal infections because they offer a considerable danger and can be difficult and time-consuming to treat. Additionally, as I already explained, overwatering your plant might result in these illnesses.

All fungi diseases share one trait in common, which is their rapid spread throughout the plant and ability to kill the entire plant. Therefore, if you find that practically all of the leaves are becoming brown, a fungus is probably to blame.

If you want to resolve this type of problem, you must avoid overwatering, keep the leaves dry, and refrain from watering from the top. Fungicides should also be used.


Although hydrangea prefers strong light, it can’t stand up to direct sunshine. The leaves of hydrangea will most likely turn brown and eventually fall off if it is exposed to direct sunlight for most of the day.

Finding the optimal spot for your plant where it will receive the strong indirect sunlight it needs while avoiding direct sunlight is all that is needed to solve this issue, making it extremely simple.


It is extremely common to apply fertilizer to the soil since hydrangeas prefer soil that is rich in nutrients. However, you must be careful not to overdo it. Salt accumulates in the soil when there is an excess of a fertilizer, which also makes the soil more acidic. High salt content results in leaf browning and cell death.

To be honest, it’s really simple to solve this issue. Fertilizers should only be applied as necessary, and hydrangeas only require fertilizer once a year in the early to late spring.

Repotting Shock

Your hydrangea could experience shock and stress after being replanted. Therefore, much like humans, your plant will have trouble adjusting to the new environment. As a result, you may notice that the leaves of your hydrangea are turning brown, but this is not causing for concern.

All you need to do is allow your plant some time to become used to its new surroundings, and of course, take good care of it.

How to Prevent Hydrangea Leaves From Turning Brown?

There are a few crucial aspects to take into account while growing a hydrangea if you want to do it in the healthiest manner possible and to guard against the plant developing many problems. and let’s examine these elements and our next steps.


Throughout the growing season, you should water hydrangeas at a rate of 1 inch per week. Use a soaker hose to water thoroughly and maintain moisture in the blooms and foliage. Deeply water your plants three times each week to promote root growth. Additionally, take great care to prevent both overwatering and underwatering.


The soil has to be rich in organic matter for hydrangeas to thrive. Additionally, the soil has to have good drainage, which is a crucial component. The soil should be wet since hydrangeas prefer that environment but cannot tolerate soggy soil.


In order to maintain hydrangeas healthy and to be able to prevent many problems that might arise, you need to apply fertilizers to the soil once a year. Hydrangeas want their soil to be rich in nutrients.

Final Words

The article’s conclusion will be in this section. As you can see, this article is long since I attempt to include all you need to know.

You must first identify the cause if you see that the leaves on your Hydrangea are becoming brown. When you do, solving the issue is straightforward. And after reading this article, I’m sure you’ll be able to identify the problem and find a solution much more rapidly.

I hope you will like this article and enjoy reading it. Thank you!

Further Reading

Here are some other articles that you might also find helpful. If you don’t have a routine for watering cucumbers and are unsure whether you should water them or not, read this article to educate yourself before moving on to another article to learn what you need to do to ensure that your geraniums are flowering for the majority of the time.

If you notice a problem with your cactus, you may read some advice in this article on how to remedy it before moving on to another post to read about a strawberry plant that is dying and learn what you can do to save it.

Aurora Hansen

About Us

FlowerPictures is a website dedicated to the most beautiful things in life - PLANTS!

Its run by enthusiast gardeners that have years of experience.