Nepenthes Pitcher Troubles: Light, Fertilizer, and Repotting

Katherine (Southern Hemisphere) has N. ventrata and N. alata producing tiny pitchers for 4 months. Grown under 150W incandescent, then 20W fluorescent, near a constant fire (low humidity), with past over-fertilization. Plans to repot and move to south-southwest window (10–14 hrs direct sun). Also asks about west-northwest windowsill plants and a Pinguicula that stopped growing after a heat pump raised temps.

Diagnosis

Low light and fertilizer residue both stunt pitchers. Recovery takes up to 3 months—new leaves and tendrils must form. In Southern Hemisphere, use a sunny north or west window (your south = our north). Winter means even less light—move now.

Repotting

Don't reuse old soil—ingredients break down. Fresh 1:1 dried sphagnum moss:perlite. Pot size doesn't matter much (short roots); larger pots dry slower.

Windowsill Recommendations

Use "Best Plants For You" tool at cobraplant.com (swap north/south for hemisphere). Pinguicula (likely Mexican) enters 2–4 month dormancy triggered by light/moisture, not temperature—leave it be.

Good Growing!
Jacob Farin
Sarracenia Northwest