Why Are My Marigold Leaves Turning Purple

Marigolds are popularly known for their bright yellow and orange blooms. But sometimes, a gardener might be surprised to find their marigold leaves turning purple. This could be caused by several factors, including environmental stress, nutrient deficiencies, too much nitrogen, or even pests.

Knowing the cause of the discoloration can help you better treat the problem and restore the health of your marigolds.

What Causes Marigold Leaves to Turn Purple

Marigold leaves turning purple is a common occurrence in gardens that can puzzle even the most experienced gardener. There are a number of reasons why marigold leaves turn purple, ranging from a lack of nutrients in the soil, to excessive exposure to cold or heat.

Marigolds are also sensitive to environmental stress, such as drought or overwatering. If the soil is lacking in nitrogen, phosphorus, and potassium, marigold leaves can become purple. In addition to nutrient deficiencies, too much or too little sunlight can also cause marigold leaves to turn purple.

If the marigolds are exposed to extreme temperatures, such as cold temperatures or direct sunlight, it can cause the leaves to turn purple. Lastly, overwatering can lead to root rot, which can also cause the leaves to turn purple.

Fortunately, these issues can be remedied by adjusting the soil’s nutrient levels, providing adequate sunlight and temperature, and ensuring that the marigolds are not overwatered.

What Type of Marigolds Are Most Prone to Purple Leaves

Marigolds are popular annuals that come in a wide variety of bright colors. Some marigold varieties are more prone to developing purple leaves than others.

Typically, the purple coloration is a result of a mineral deficiency in the soil, which can be remedied with a balanced fertilizer. But if you’re looking for a marigold variety with purple leaves, there are several varieties that display this stunning color naturally.

French marigolds are a common choice, with their bright yellow and orange petals surrounding deep purple foliage. African marigolds are another great choice, featuring a range of colors from purple to yellow.

Both varieties are sure to add a unique and eye-catching touch to your garden.

How to Treat Purple Marigold Leaves

Purple marigolds are a beautiful and vibrant addition to any garden or flower bed. However, they require specific care to keep them looking their best. To treat purple marigold leaves, it is important to understand their watering and light needs.

Water the plants regularly, but be careful not to over-water them, as this can cause root rot. Purple marigolds also need plenty of direct sunlight to bloom, so make sure they are getting at least five to six hours of direct sunlight each day. Additionally, it is important to fertilize the plants once a month, but be careful not to over-fertilize them.

Finally, keep the plants free of dead leaves and debris by regularly pruning and trimming them. With the proper care, purple marigold leaves will thrive and bring life and color to any garden or flower bed.

What in the Devil Is This? Purple Leaf Edition – Perkins Park
Image source: https://perkinsparkcommunitygarden.blog/2020/06/03/what-in-the-devil-is-this-purple-leaf-edition/

What Environmental Factors Contribute to Marigold Leaves Turning Purple

Marigold leaves turning purple is a phenomenon that can be caused by a variety of environmental factors. These can include temperature, humidity, light intensity, soil nutrients, and even air pollution. Temperature fluctuations can cause purple discoloration in marigold leaves, as can changes in humidity.

High levels of light intensity can also cause a deep purple hue in marigold leaves. Insufficient soil nutrients can cause the leaves to develop a purple hue due to a lack of essential nutrients, while air pollution can also lead to a purple discoloration of marigold leaves.

Ultimately, any changes in the environmental conditions can lead to marigold leaves turning purple.

What Nutrients Are Needed to Prevent Purple Marigold Leaves

Purple Marigolds are a vibrant and attractive flower that is popular in many gardens. However, if the leaves of the plant start to turn purple, it could be a sign that the plant is not getting the nutrients it needs.

To prevent purple leaves, it’s important to ensure that your purple marigolds get the right balance of nutrients, including nitrogen, phosphorus, potassium, magnesium and iron. Additionally, regular watering and fertilizer can help to keep your plants healthy and vibrant.

By providing your purple marigolds with the nutrients they need, you can ensure that they will remain healthy and produce beautiful blooms throughout the season.

How to Avoid Marigold Leaves Turning Purple in the Future

Marigolds are a beautiful flower that can bring a lot of color and joy to a garden. Unfortunately, when marigold leaves turn purple, it can be an unwelcome sight. But, there are some simple steps you can take to avoid this issue in the future.

First, be sure to water your marigolds regularly and evenly. Too much or too little water can cause the leaves to turn purple. Secondly, provide your marigolds with adequate amounts of fertilizer and other nutrients. Too much fertilizer or other nutrients can cause the leaves to discolor.

Finally, try to choose a spot for your marigolds that gets plenty of sunlight without being too hot or too cold. Too much or too little sunlight can cause the leaves to turn purple as well.

By following these steps, you can ensure that your marigolds stay healthy and the leaves stay a healthy green color.

FAQs About the Why Are My Marigold Leaves Turning Purple

What is causing my marigold leaves to turn purple?

Answer: Marigolds can develop purple leaves if they are exposed to cold temperatures, lack of sunlight, or too much nitrogen in the soil.

How can I prevent my marigold leaves from turning purple?

Answer: Make sure your marigolds are planted in an area that receives plenty of sunlight, and avoid over-fertilizing with nitrogen-rich fertilizers.

How can I treat marigolds with purple leaves?

Answer: Remove any affected leaves and move the plant to a warmer, sunnier location. You can also try feeding the plants with a phosphorus-rich fertilizer to help balance the soil nutrients.


In conclusion, the purple discoloration of marigold leaves can be caused by a variety of factors, including nutrient deficiencies, environmental conditions, or disease. If the leaves are turning purple, it is important to first identify the cause before taking action. If it is determined to be a nutrient deficiency, the addition of fertilizer should help to fix the problem. If the purple color is being caused by environmental conditions or disease, then steps should be taken to address the underlying issue.


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