Repotting and Dividing a Large Nepenthes 'DeRoose Alata': Soil, Cuttings, and Humidity

A two-year-old Nepenthes 'DeRoose Alata' (likely N. alata × ventricosa × alata) outgrowing a coconut-lined basket needs repotting into proper media—and can be divided to create new plants.

Correct Soil Mix

Never use standard potting soil. Use one of these proven blends:

• 75% orchid mix (bark, perlite, charcoal) + 25% peat moss
• 50% perlite + 25% peat moss + 25% dried sphagnum moss

Division & Propagation

1. Identify the main vine and secondary vines.
2. Cut secondary vines with at least 2–3 nodes.
3. Plant cuttings in the same mix.
4. Bag each pot in a clear plastic bag to maintain ~100% humidity.
5. Open bag gradually (increase vent daily) once new growth appears.

Mother Plant Care After Repotting

• Repot into a larger basket or pot with fresh mix.
• Stake the vine to grow upright if desired.
• Water only with rain, distilled, or RO water.
• Provide bright, indirect light or morning sun.

Key Reminders

• Coconut coir and potting soil break down, compact, and kill Nepenthes roots.
• High humidity is critical for cutting success—bagging is essential.
• Expect a few months of adjustment before pitchers return.

With proper media and humidity management, both the mother plant and cuttings will thrive.