Are Coffee Grounds Good for Anthuriums?

Anthuriums, with their striking heart-shaped flowers and glossy leaves, are popular choices for indoor and outdoor gardens. This tropical plant, native to the rainforests of Central and South America, needs specific care to thrive.

So, are coffee grounds good for anthuriums?

Yes, coffee grounds are good for anthuriums as they provide a slow release of nitrogen, promoting healthy foliage growth. However, overdoing it can cause harm to your plant.

Coffee grounds, known for their nitrogen-rich composition, have long been favoured by many gardeners as a natural and easily accessible fertilizer. 

Know your plant – Anthuriums

Anthuriums are known for their heart-shaped flowers, which come in a variety of colours. These colours include shades of red, pink, white, and even green.

Several anthurium varieties show climbing tendencies, while all of them require warm and humid conditions to flourish. With adequate care, an indoor anthurium can usually live for around 5 years. However, with propagation, you can maintain a healthy anthurium in no time. 

Note that anthuriums are toxic to both humans and pets.

As for their requirements, anthuriums prefer bright, indirect light. These plants grow in temperatures between 65°F to 85°F. 

Another thing is they prefer their soil slightly moist, but never allow it to dry out completely. Also, Anthuriums likes coarse, well-draining potting mix.

While anthuriums are relatively hardy plants, they can face a few challenges. Some common issues include yellowing leaves. Promptly addressing these issues through proper care and occasional treatment can help your anthurium thrive.

What Nutrients do coffee grounds contain?

Coffee grounds are packed with a range of beneficial nutrients that can work wonders for your plants. Coffee grounds contain 2% of nitrogen and small amounts of phosphorous, potassium and other minerals.

  • Nitrogen – Coffee grounds are a rich source of nitrogen, an essential nutrient for plant growth. Nitrogen plays a crucial role in promoting vibrant green foliage and encouraging plant growth. When coffee grounds are added to the soil, they slowly release nitrogen, providing a steady supply of this vital nutrient to your plants.
  • Potassium – Another important nutrient present in coffee grounds is potassium. Potassium plays a vital role in enhancing the overall well-being of growing plants and strengthening their defences against diseases. By incorporating coffee grounds into the soil, you can contribute to a healthy potassium supply for your plants.
  • Phosphorus – Coffee grounds also contain phosphorus, which is crucial for root growth, flowering, and fruit development. Including coffee grounds in your gardening routine can help ensure an ample supply of phosphorus for your plants.
  • Other Minerals – Coffee grounds also have trace minerals such as calcium, magnesium, and iron. While these minerals are required in smaller quantities, they still play vital roles in various plant functions.

Are Coffee Grounds Good for Anthuriums?

Coffee grounds contain nutrients like nitrogen, which is essential for plants, including anthuriums. When we add coffee grounds to the soil, they slowly release nitrogen, acting as a natural fertilizer. This can help promote lush, green foliage in anthuriums and contribute to their overall well-being.

However, too much nitrogen from excessive coffee grounds can have negative effects on the plants as well. So, it’s best to use coffee grounds in moderate amounts and alongside other organic materials to maintain a balanced nutrient supply for your anthuriums.

Moreover, consider other factors like soil acidity, drainage, and the overall nutritional needs of your anthuriums. Make suitable growing conditions, along with the occasional use of coffee grounds for your anthuriums.

Pros and Cons of Using Coffee Grounds on Anthuriums

Anthuriums plant prefer slightly acidic soil, and coffee grounds can help them.


1. Works as a natural fertilizer

Coffee grounds serve as a natural fertilizer due to their nutrient content of nitrogen, phosphorus, and potassium. When added to the soil, coffee grounds gradually release these nutrients, providing a natural boost to the anthuriums.

2. It is a slow-release fertilizer

Coffee grounds act as a slow-release fertilizer, meaning that the nutrients are released slowly over time. This can prevent the risk of over-fertilization. 

3. Cost-effective

Coffee grounds as fertilizer are a cost-effective option. Using coffee grounds can reduce waste and benefit the plant as well.

4. Contribute to healthy soil

Coffee grounds also contribute to the overall health of the soil. When added to the soil, they improve its structure by increasing organic matter content and enhancing water retention.


1. Excessive Nitrogen can harm your plant

Coffee grounds are rich in nitrogen, which is beneficial for plant growth. However, using coffee grounds in excess can lead to an imbalance of nitrogen in the soil, which can harm your anthuriums.

2. pH imbalance

Coffee grounds are naturally acidic, and anthuriums prefer slightly acidic to neutral soil. Excessive use of coffee grounds can gradually make the soil more acidic, which may create a pH imbalance that is unfavourable for the anthuriums. 

How to Use Coffee Grounds for Anthuriums?

To use coffee grounds for your anthuriums, start by collecting the leftover coffee grounds.

Allow the coffee grounds to dry out by spreading them on a piece of paper. This prevents them from clumping together and makes them easier to apply.

Once the coffee grounds are dry, it’s time to apply them to your anthuriums. Sprinkle a thin layer of the dried coffee grounds around the base of your plant.

Water your anthurium as usual, allowing the water to soak into the soil. This helps the nutrients from the coffee grounds gradually release and reach the plant’s roots.

Another way you can use coffee grounds is by mixing it with water (making a water solution). Simply mix 1 cup of used coffee grounds per 4 gallons of room temperature water in a container. Let the mixture steep for a few hours or overnight, then use it to water your anthuriums.

Best Time to Use Coffee Grounds for Anthuriums?

The best time to use coffee grounds for your anthuriums is during their active growing season, which occurs in spring and summer. During this time, anthuriums are actively producing new foliage and flowers, and they can benefit the most from the added nutrients in the coffee grounds.

Apply coffee grounds to your anthuriums every few months, rather than using them too frequently. This allows the plant to absorb the nutrients gradually and prevents the risk of over-fertilization. A thin layer of coffee grounds can be applied around the base of the plant, avoiding direct contact with the stem.

Anthuriums plant care tips

1. Light and Temperature – Place your anthurium in a well-lit spot with bright, indirect light. Avoid exposing them to direct sunlight. Anthuriums thrive in temperatures between 65-85°F, so try to keep them in a warm and consistent environment.

2. Watering – Water your anthuriums thoroughly but allow the top inch of the soil to dry out slightly. These plants prefer slightly moist soil but can suffer if overwatered. Use room temperature water while watering them and provide good drainage.

3. Humidity – Anthuriums love high humidity. You can increase humidity around your plant by placing a tray filled with water near it or by using a humidifier. Misting the leaves can also help create a humid environment.

4. Fertilizing – Liquid fertilizer can be a safe and beneficial option for nourishing your anthuriums during their growing period. It is recommended to choose a fertilizer with a higher phosphorus content, as this promotes healthy flowering.

5. Pruning – Remove any yellowing or damaged leaves by gently cutting them off at the base. Pruning helps maintain the plant’s appearance and redirects energy to healthy growth.

6. Potting and Repotting – Anthuriums prefer well-draining potting soil. Repot your plant only when it becomes root-bound or every two to three years. Use a slightly larger pot and fresh potting mix with good drainage to ensure healthy root growth.

7. Toxicity – Keep in mind that anthuriums are toxic to humans and pets if ingested. Keep them out of reach of curious children and pets.


Anthuriums are beautiful and captivating plants that can thrive with proper care and attention. By following some tips, you can create an ideal environment for your anthuriums to flourish.

Providing them with the right amount of light, and maintaining suitable temperatures will help them thrive. Using coffee grounds can help them in many ways. But do it in moderation. 

Feeding anthuriums with a balanced fertilizer, particularly during the active growing season, helps supply essential nutrients.

By implementing these care tips and being attentive to your anthuriums needs, you can grow a thriving and stunning plant in no time.