Nepenthes mikei Slow Growth: It's Genetic, Not Your Care

2" N. mikei, ¼" pitchers, 2.5 months = 1 new leaf? Normal.

Why So Slow

• Young Nepenthes grow slowly by nature.
• N. mikei stays small for years, then spurts.
• Spring→summer→fall = acceleration.

Your Setup Is Good

1/3 coconut husk, 1/3 long-fiber sphagnum, 1/3 perlite, good drainage, 5600 lumens, 75°/68°—keep doing it. Patience is the only missing ingredient.