​Why is my ZZ plant turning brown And How To Fix It

Why is my ZZ plant turning brown And How To Fix It

The ZZ plant, or zamioculcas zamiifolia, is a low-maintenance plant commonly found in homes. Although ZZ plants are easy to grow, sometimes they turn brown following improper treatment, indicating that they need our attention to become healthy again. Don’t worry if your ZZ plant has also started to turn brown – you can save it with the help of the following article.

As a general rule, what causes the ZZ plant to turn brown is often linked to specific care issues that can compromise the plant’s health. One primary factor is overwatering, where excess moisture in the soil can lead to root rot, making the leaves turn brown and mushy. Conversely, underwatering, characterized by prolonged soil dryness, can also result in browning and shriveling of the leaves. ZZ plants thrive in bright, indirect light; placing them in low-light conditions can slow their growth and cause browning.

Nutrient deficiencies, particularly a lack of nitrogen, can manifest as yellowing and browning of the leaves. Pests like spider mites and mealybugs can infest the plant, inducing stress and subsequent browning. If the plant becomes root-bound, with its roots constrained by the pot, it may also exhibit browning as it struggles to access water and nutrients. Additionally, excessive fertilizer application can lead to salt buildup in the soil, affecting root health and causing browning.

To address these issues and prevent browning, keep reading because we will analyze each issue in depth, including how to fix them.

ZZ plant: what are they?

ZZ plants, scientifically known as Zamioculcas zamiifolia, are a type of low-maintenance succulent that has gained popularity as a beloved indoor plant and a popular houseplant choice. Native to Eastern Africa, particularly Zanzibar, these hardy plants are often called the “Zanzibar Gem” due to their durability and attractive appearance.

The standout feature of ZZ plants is their glossy, dark green leaves that have a feather-like arrangement. This unique leaf pattern adds a touch of elegance and modernity to any indoor space. ZZ plants are known for their ability to thrive in conditions many other indoor plants find challenging. Their adaptability to low light, dry air, and irregular watering routines makes them an ideal choice for those seeking a resilient and fuss-free plant companion.

ZZ plants have become a favorite among indoor gardeners and enthusiasts due to their easy-care nature and air-purifying qualities. Their status as a native of Zanzibar, combined with their elegant and striking appearance, has propelled them into the spotlight as a must-have indoor plant for homes, offices, and various indoor settings. Whether you’re a seasoned plant enthusiast or just starting your indoor gardening journey, ZZ plants are sure to captivate with their native allure and enduring beauty.

Why is my ZZ plant turning brown, and how can it be fixed?


Overwatering is the most common cause that can lead to browning in ZZ plants. These hardy plants, native to arid regions, have adapted to thrive in drought-like conditions. When exposed to excess or too much water too frequently, the roots can become waterlogged, leading to root rot. This root damage hampers the plant’s ability to absorb essential nutrients and oxygen, causing the leaves to turn brown and eventually wilt. Additionally, stagnant moisture in the soil can attract fungal growth, compounding the browning problem.

How It Can Be Fixed

Addressing the browning caused by overwatering requires adjusting your watering habits. Allow the top inch or two of the soil to dry out between waterings. Instead of adhering to a strict watering schedule, use the “finger test” – insert your finger into the soil up to the first knuckle. If it feels dry, it’s time to water. Ensure that the pot has proper drainage to allow excess water to escape and avoid waterlogging. Consider repotting your ZZ plant into well-draining soil if the current mix retains too much moisture.

Furthermore, be mindful of the water quality you’re using. If tap water has high levels of chemicals or minerals, consider using filtered or distilled water to prevent poor water quality from affecting your plant’s health. By adopting a more cautious approach to watering and providing optimal drainage and water quality, you can rescue your ZZ plant from the browning effects of overwatering and help it regain its vibrant appearance.


One of the most common reasons for browning in ZZ plants is underwatering. While ZZ plants are known for their resilience, consistently providing too little water can lead to stress and browning of the leaves. These plants require a moderate amount of water to sustain their growth, and failing to provide enough water can result in the plant’s inability to access essential nutrients and moisture. The leaves lose hydration and may turn brown, curl, or develop crispy edges.

How It Can Be Fixed

To remedy the browning caused by underwatering, it’s crucial to establish an appropriate watering routine. Check the soil regularly and water your ZZ plant when the top inch feels dry. However, avoid allowing the plant to sit in standing water, which can also contribute to root rot. When watering, ensure water penetrates evenly through the soil, reaching the root zone. If your plant is in a pot without drainage holes, consider repotting it into a container with proper drainage to prevent waterlogging and improve water distribution. Additionally, if you’re using tap water with high chemical or mineral content, investing in a water filtration system or distilled water can help provide a consistent and suitable water source for your ZZ plant. By adjusting your watering practices to provide adequate but not excessive water and maintaining proper drainage, you can effectively counter the effects of underwatering and restore your ZZ plant’s health and vibrancy.

Low Light

Low light conditions can contribute to the browning of ZZ plant leaves. While ZZ plants are adaptable and can tolerate low light, prolonged exposure to insufficient light levels can lead to reduced photosynthesis and slowed growth. Inadequate light hinders the plant’s ability to produce energy and can weaken its overall health, resulting in the development of brown patches or browning of the leaves. If a ZZ plant is placed in an area with consistently low light, it may not thrive as it should, leading to visible signs of stress such as discoloration.

How It Can Be Fixed

To address the issue of browning due to low light, it’s essential to ensure your ZZ plant receives enough light for healthy growth. Place the plant in a location with bright indirect light, such as near a north or east-facing window, to provide the optimal balance between light exposure and protection from too much direct sunlight. Rotate the plant occasionally to ensure even light distribution to all sides. If your living space lacks sufficient natural light, consider using artificial grow lights specifically designed for indoor plants. These lights can provide the necessary spectrum of light for photosynthesis and growth. By providing your ZZ plant with appropriate light conditions and ensuring it gets enough light, you can prevent browning and encourage lush, green foliage to thrive again.

Nutrient Deficiency

A potential reason behind the browning of your beloved ZZ plant could be a nutrient deficiency. While ZZ plants are known for their low-maintenance nature, they still require a balanced supply of essential nutrients for optimal growth. If your ZZ plant is not receiving adequate nutrients, particularly nitrogen, phosphorus, and potassium, it may exhibit signs of stress, including browning or yellowing of the leaves. The soil that your ZZ plant is growing in can become depleted over time, affecting the overall health and vibrancy of your plant.

How It Can Be Fixed

When addressing nutrient deficiency-related browning, the first thing to consider is providing your ZZ plant with fresh soil. Repotting your plant into a well-draining, nutrient-rich potting mix can help rejuvenate its nutrient supply and improve the health of your ZZ plant. Additionally, consider introducing a balanced liquid fertilizer designed for houseplants. Follow the manufacturer’s instructions for dilution and frequency to avoid overfertilization. Applying a controlled-release fertilizer during the growing season can also provide a steady source of nutrients to your ZZ plant. Regularly monitoring the condition of your plant’s leaves and observing any changes in color or texture can help you gauge whether nutrient deficiencies contribute to the browning. By taking proactive steps to replenish the soil and provide the necessary nutrients, you can revive the health of your ZZ plant and restore its vibrant, green appearance.

Pest Infestations

If you’ve noticed your beloved ZZ plant turning brown, a possible culprit could be a pest infestation. Pests like mealybugs, spider mites, or fungus gnats can affect your plant’s health. These tiny invaders feed on plant sap, causing stress and damage that may result in browning or discoloration of the leaves. Fungus gnats, in particular, can introduce fungal diseases to the soil, further contributing to the deterioration of your ZZ plant’s condition. An unchecked pest infestation can weaken your plant’s overall vitality, leading to visible signs of distress.

How It Can Be Fixed

The first thing to do when dealing with a pest infestation causing browning is to isolate your affected ZZ plant from other plants to prevent the pests from spreading. Inspect both sides of the leaves and the affected areas to identify the pests. Use a gentle stream of water to wash off the pests and remove as many as possible. For mealybugs or spider mites, wiping the leaves with a damp cloth can help reduce their numbers. To address fungus gnats and potential fungal diseases, allow the soil to dry out between waterings and consider applying a soil drench with neem oil, which can act as a natural insecticide and fungicide. Regularly monitoring your ZZ plant for any signs of pests and promptly addressing any infestations can help prevent further browning and maintain the health and appearance of your cherished plant.

Root Crowding

Root crowding can contribute to the browning of your ZZ plant’s leaves. Over time, as your plant grows, its root system may become cramped and constrained within its current pot. This can lead to issues such as root rot, where the roots cannot receive sufficient oxygen and drainage, resulting in browning and wilting of the leaves. If your ZZ plant’s roots are tightly packed and unable to expand, it can struggle to uptake water and nutrients, leading to signs of stress and deterioration.

How It Can Be Fixed

The good news is that addressing root crowding can help your ZZ plant recover and thrive. The first step is to remove the plant from its current pot and gently shake off the old soil. Examine the root system for any signs of rot or overcrowding. Trim away any rotten roots using clean and sharp scissors or pruning shears. Choose a slightly larger pot with drainage holes, and fill it with a well-draining potting mix suitable for succulents. Place the ZZ plant in the new pot and fill the spaces around the root ball with fresh soil, ensuring it sits at the same depth as in the previous pot. Water the plant lightly after repotting and allow the soil to settle. Providing your ZZ plant with adequate room for its root system to expand and ensuring proper drainage can help prevent further browning and promote healthy new growth, rejuvenating your plant’s overall health and appearance.

Best Way to Grow ZZ Plant

Best Way to Grow ZZ Plant
Best Way to Grow ZZ Plant

Growing ZZ plants (Zamioculcas zamiifolia) can be a rewarding experience, as these hardy and low-maintenance plants are well-suited for indoor environments. Here’s a guide to help you successfully grow ZZ plants:

  • Light: ZZ plants can tolerate various conditions but thrive in bright, indirect light. Avoid exposing them to direct sunlight, as this can lead to scorching of the leaves. Place your ZZ plant near a north or east-facing window, or provide filtered sunlight if you have intense exposure.
  • Soil: Use a well-draining potting mix designed for succulents or cacti. A mix that contains perlite or sand can improve drainage. Ensure the pot has drainage holes to prevent waterlogging.
  • Watering: ZZ plants are drought-tolerant and prefer to dry out between waterings—water thoroughly when the top inch or two of the soil is dry to the touch. Overwatering can lead to root rot, so it’s better to err on the side of underwatering.
  • Temperature: ZZ plants prefer average room temperatures between 65°F to 75°F (18°C to 24°C). They can tolerate slightly cooler temperatures but should be protected from frost.
  • Humidity: ZZ plants are adaptable to various humidity levels, including low humidity. Avoid arid air, as it can lead to brown leaf tips. Regular misting or using a humidity tray can help increase humidity if needed.
  • Container: Choose a pot with drainage holes and a size that accommodates the root system, allowing some room for growth.
  • Fertilization: ZZ plants have low nutrient requirements. Feed them with a balanced, diluted fertilizer every 2-3 months during the growing season (spring to early fall). Avoid overfertilizing, as it can lead to salt buildup.
  • Pruning: Trim off any yellow or brown leaves at the base to maintain the plant’s appearance. ZZ plants are slow growers, so pruning needs are minimal.
  • Propagation: ZZ plants can be propagated by dividing the rhizomes (underground stems) during repotting. Ensure each division has healthy roots and leaves.
  • Pest and Disease Control: Look for pests like mealybugs or spider mites. Regularly inspect the plant and treat any infestations promptly.
  • Repotting: ZZ plants prefer to be slightly root-bound, so repot every 2-3 years or when it becomes too large for its pot. Choose a new pot that is only slightly larger than the current one.


Hey, My name is Liat and I am addicted to house plants! I have at home more than 50 different types of plants of all kinds - succulents, cactus, tropical plants, orchids and more! Feel free to share the blog with friends on social networks.

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