Nepenthes bicalcarata Leaf Browning: Likely T5 Heat Burn

Grower's N. bicalcarata (80% RH, 80°F day/70°F night, 2×4ft T5) shows browning on older leaves. Plant otherwise looks great.

Diagnosis

T5 tubes run hot; leaves close to tubes may be scorched. Raise lights or increase distance. Species prefers warm nights but not leaf-level heat.

Sarracenia Northwest doesn't grow bicalcarata (too cold in winter). Suggested forum: LHNN Proboards for more opinions.

Carnivorous Plants: Nepenthes burkei Root Rot from Waterlogged Conditions; Mystery White Grains on Nepenthes: Sphagnum Debris vs. Scale Insects; Nepenthes 'Miranda' Not Pitchering: Low Humidity Is the Cause; Nepenthes alata × ventricosa Outdoor Transition: Burn Then Recovery; Nepenthes bicalcarata Winter Shipping Shock: High Risk, Needs Heat, Summer Purchase Better; Nepenthes Scale Insects: Systemic Insecticide Treatment; Growing Nepenthes Bicalcarata: Heat, Humidity, and Light Requirements; Nepenthes bicalcarata Stalled Growth: Warmth, Light, and Humidity Stability; Choosing a Nepenthes Soil Mix: Pre-Made vs. DIY; Rescuing a Stressed Nepenthes bicalcarata: Light, Temperature, and Repotting

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