Why Are My New Nepenthes Turning Yellow?

Will in South Carolina bought several Nepenthes from Lowe's (likely N. ventricosa, not 'Judith Finn'), repotted them in a sphagnum/peat/perlite/bark mix, and keeps them outside in indirect sun (high 80s–low 90s°F, 20–40% humidity). Leaves are pale and yellowing despite daily watering with 50 ppm tap water.

Nepenthes showing yellowing after transition from retail cubes

Adjustment Shock, Not Poor Conditions

Jeff Dallas reassures: "It mostly looks like your plant is just having to adjust from being in those cubes to more normal humidity." The retail "death cubes" maintain artificially high humidity; moving plants to open air causes temporary leaf loss. Outdoor humidity in South Carolina is perfectly fine.

Recovery Steps

1. Keep plants in bright shade (as you're doing).
2. Apply a restorative drench every two weeks: ¼ tsp orchid fertilizer + Superthrive per gallon of water.
3. Remove only fully dead leaves; let the plant reabsorb nutrients from yellowing ones.
4. Be patient—recovery takes weeks.

Jeff identifies the plant as likely N. ventricosa (solid green pitchers), whereas 'Judith Finn' typically shows speckling.

Water Quality Note

50 ppm TDS is acceptable for Nepenthes, though Sarracenia and flytraps prefer lower. If yellowing persists after a month, consider switching to rain or RO water.