Normal Leaf Aging and Water Quality for Young Nepenthes ventricosa

Yellowing Lower Leaves = Normal

Older leaves (1") yellow, blacken at edges, die off → woody stem. New growth (3", green, waxy, red-stemmed) indicates health.

White Deposits on Soil

Not from rainwater (minimal dissolved solids). Likely pre-existing in soil. Rainwater and melted snow are both fine. Nepenthes tolerate harder water than most carnivorous plants; tap water often acceptable depending on location.