Light Requirements: Prefers bright, indirect light. Direct sun can scorch its thick, velvety leaves, while low light may slow growth and reduce leaf size. A position near an east- or north-facing window is ideal indoors.
Watering Needs: Water when the top 1–2 inches of soil are dry. This species prefers consistently moist but not soggy soil. Use lukewarm, filtered water when possible, as it is sensitive to chemicals in tap water. Reduce watering slightly in winter.
Soil Preference: Use a loose, chunky, well-aerated mix that mimics its epiphytic nature. A blend of orchid bark, perlite, and a small amount of peat or coco coir provides the moisture retention and drainage it needs.
How to Fertilize: Fertilize during the growing season (spring and summer) every 4–6 weeks with a balanced, diluted liquid fertilizer or one formulated for aroids. Avoid over-fertilizing, which can damage roots or cause leaf burn.
Hardiness Zone: Suitable for USDA Hardiness Zones 10–11. Indoors, it prefers warm, stable temperatures between 65–80°F and does not tolerate cold drafts or temperatures below 55°F.
Pet Safety: Toxic to cats and dogs. Contains calcium oxalate crystals that can cause irritation, drooling, vomiting, or difficulty swallowing if ingested. Keep out of reach of pets.
Additional Care Tips: Anthurium clarinervium is prized for its thick, heart-shaped leaves with striking white venation. It prefers high humidity (above 60%) and benefits from occasional misting, a pebble tray, or a humidifier. Wipe leaves gently with a damp cloth to remove dust. Repot every 2–3 years or when rootbound. Can be propagated via division or stem cuttings with aerial roots.
