Blueberry Leaves Turning Red: Causes & Fixes

Sometimes I ask myself how I get all the ideas to write all of these articles, because let’s face it, regardless of how passionate you might be for a certain topic, you always run out of ideas at some point. But fortunately for you and me, that hasn’t happened to me, yet!

Anyway, after I asked myself that question, I started thinking deeply about the answer, and I found it. I get easily motivated and inspired by the very most simple things in life, and that’s how I get my ideas going and never stop.

For instance, let’s not dig deeper and go through the other articles, I’ll just talk about this article. The idea to write this article came to me while I was drinking a nice cup of tea. But, not just any tea, I was drinking a forest fruit tea. I need to say that I’m just in love with forest fruits, even my ice cream is never a different flavor but forest fruit flavor.

And, while I was analyzing the ingredients of the tea I was drinking, I spotted that the tea contains also blueberries, and I thought, why don’t I write another article related to blueberries, even though I’ve written one about how many blueberries can you get per bush, but this one will be different.

This article will be more concentrated on the issues that you might experience with a blueberry plant, so without no further ado, I just finished my teas, so we can get started!

Blueberry Leaves Turning Red – The Causes

Nutrient Deficiency

Spring or summertime reddening of blueberry leaves typically signifies nutrient deficiencies in your plants, such as phosphorus, magnesium, and other elements. The blueberries’ fresh green coloring depends on these vitamins.

It is a sign of nutrient deficit if your blueberries are turning red on the leaves and have lost their bloom without producing fruit from the previous growing season. In nutrient-rich soil or potting mix, you should cultivate your blueberries. Remember to fertilize your plants every so often as well.

Cold Exposure

After losing its leaves in the winter, the blueberry bush will develop new, young leaves in the spring. Because they are still growing, these leaves often have a red tint.

However, this red tint should typically start to recede as the leaves develop and mature, establishing themselves on the bush, and the leaves should start displaying a bright, unified green color.

The blueberry leaves, on the other hand, can turn crimson or even purple if an abnormally cold front brings extremely low temperatures. If your blueberry plant is left in these chilly conditions or if the temperature falls significantly lower, this could result in other issues. Your blueberry bush might eventually die as a result of this and lose all of its leaves.


It’s possible that bacteria or fungi are attacking your blueberry plants. Diseases including phomopsis twig blight, blueberry leaf scorch, and red ringspots can turn the leaves red, though the symptoms of each disease varies. For instance, if blueberry leaves contain red ringspots, you will notice the spots on the leaves.

You should take a twig or leaf to your neighborhood extension office for accurate diagnosis as red leaves in your blueberries can be an indication of a number of diseases. You can also speak with local farmers who are experts. If you notice red leaves on any of your blueberry plants, you should immediately begin isolating that particular plant.

To cure your blueberries, use the suggested treatment products. Additionally, you must adequately disinfect the current potting mix and repot your planted blueberries into a new container and potting mix.

Soil pH

Acidic soil with a pH range of 4.5 to 5.0 is preferred by blueberry plants. If the soil is more acidic or basic than what your plants need, they will express their discontent by growing some discolored leaves.

The way your blueberry plants absorb nutrients or water may be affected by improper pH in the soil, which can also result in red leaves on blueberry bushes. A pH meter should be used to measure the pH of your soil. You should amend the soil if it does not meet the exact specifications for your blueberry plants.

Blueberry Leaves Turning Red – Preventive Measures 

Keep the Blueberry Plant Warm

The blueberry plant’s exposure to severely cold temperatures is one of the factors that causes its leaves to turn red. Although the blueberry plant is tough, it cannot withstand extremes in temperature.

Therefore, you must maintain a steady temperature of warmth for the plant to aid in its recovery from the cold and to stop the leaves from changing color again. It should be fine for the blueberry plant if you don’t need a jacket and feel comfortable in the temperature that you have placed the plant.


Maintaining your blueberry plants in pots requires fertilization because they can only absorb nutrients from what you put to the soil. During the growing season, you must be sure to fertilize your blueberry plant with a well-balanced fertilizer at least once a month.

Increase The Soils pH Level

If your blueberry soil has a low pH level, you can add coffee grounds, dried leaves, peat moss, pine bark mulch, or composted manure to the soil to help raise the pH level to the proper level and maintain the health of your blueberry plants.

Closing Words

I hope this post has clarified any questions you may have had regarding the red leaves on your blueberry plants. The good news is that most of the time, if you know how to approach the situation, you can address these problems pretty effectively.

Further Reading

I have already mentioned the other article that I have written about blueberries, nut that doesn’t mean I haven’t written about other berries, so you go ahead and read the article about how to kill blackberry bushes in your garden.

If you want to continue reading about berries in particular, then I invite you to read how many raspberries you can get per one plant.

Furthermore, you can read about how to revive a dying strawberry plant. Enjoy!

Ella Holmes

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