Here’s Why Your Anthurium Leaves Turn Yellow

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Anthuriums, celebrated for their vibrant red blossoms and verdant foliage, can be a source of joy for any plant enthusiast. However, when those lush green leaves take on a yellow hue, it’s a sign that your prized plant may be facing an issue.

Color transformations in anthuriums are not uncommon, particularly when cultivated in pots. In this journey to decode the mystery of yellow leaves, understanding environmental stress and crafting an ideal habitat for your flora becomes paramount.

The primary perpetrators behind the yellowing spectacle are inadequate watering and excessive exposure to light. These twin villains collaborate to induce chlorosis, the breakdown of chlorophyll in plant leaves. Essentially, overwatering and excessive light lead to reduced chlorophyll production, resulting in that undesirable yellow or even brownish tint.

Too much Sunlight

Contrary to popular belief, anthuriums don’t revel in direct sunlight. Too much sun exposure can turn leaves progressively yellow and, in extreme cases, result in browning or scorching. Shelter your anthurium in a location with mostly indirect light, avoiding direct sunlight to preserve its vitality.


Overwatering emerges as a common antagonist, as anthuriums thrive in moderately moist soil. Striking the right balance is crucial – the soil should stay moist but not become waterlogged. Vigilance over soil conditions and plant needs is key to preventing issues like root rot and ensuring optimal water absorption.

Low Humidity

Anthuriums, native to tropical realms, crave high humidity. Yet, indoor environments often fall short of delivering consistent humidity levels. If diligent watering hasn’t remedied the yellowing issue, consider low humidity as a potential culprit. Combat this by relocating your anthurium to a more humid space or introducing artificial humidity through methods like a humidifier.

Nutrient deficiency

While anthuriums don’t demand copious amounts of fertilizer, a nutrient deficiency can trigger yellowing. Monthly doses of water-soluble fertilizer with added phosphorus, applied at a quarter of the recommended strength, can fuel your plant’s foliage and vibrant blooms. However, moderation is key, as excess fertilizer can lead to nutrient imbalances.

Poor Soil

Inadequate soil drainage can pave the way for root rot and yellow leaves. Optimal soil, a blend of peat moss, pine bark, and perlite, ensures proper aeration and nutrient content for a thriving anthurium.

Temperature Tango: Finding the Sweet Spot

Temperature stress, whether too cold or too hot, can wreak havoc on anthuriums. Maintaining a temperature range of 21-29°C is ideal. Shield your plant from extreme temperature zones to prevent chlorosis and ensure a flourishing display of flowers.

Tips for Treatment and Prevention

Now armed with insights into the yellowing saga, it’s time to revive your anthurium’s splendor. Follow these tips for ongoing care:

  • Maintain a temperature between 21-29°C.
  • Choose well-drained soil with peat moss, pine bark, and perlite.
  • Opt for bright, indirect light.
  • Mimic tropical humidity conditions.
  • Fertilize monthly at a quarter of the recommended strength.
  • Prune dead foliage to foster a healthy environment.
  • Use a pot slightly larger than the plant to mitigate overwatering risks.

Anthuriums exhibit varying water needs with the seasons. Adjust your watering routine based on winter dormancy and increased hydration requirements during summer’s heat. When transplanting becomes necessary, ensure success with these steps:

  • Water the plant thoroughly before transplanting.
  • Choose a slightly larger, porous clay pot with drainage holes.
  • Opt for a well-drained soil mix of peat moss, pine bark, and perlite.

How do I know if my anthurium is sick?

Look out for yellow or wilted leaves, slow growth, discolored flowers, and signs of root rot. These symptoms could signal underlying health issues.

Armed with this comprehensive guide, your journey to a vibrant, flourishing anthurium awaits. Reclaim the health and vibrancy of your cherished plants by understanding their language and providing the care they deserve!

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