Outdoor Nepenthes in San Diego: Soil Mix, Repotting, and Cuttings

Question: I live in San Diego and grow N. alata and N. ventrata outdoors. A grower's site suggests highland Nepenthes can adapt to full sun year-round here. My plants are doing fine. What soil mix do you recommend using long-fiber sphagnum, perlite, orchid bark, and peat moss? Also, my ventrata doesn't hold water well—should I repot or just water more? Lastly, I have three stem cuttings rooting in water in a northwest window; when should I pot them up?

Answer

Hi Justin,

Your varieties should do well outdoors. Transition slowly from shadier spots to avoid leaf burn; vigorous growers like ventrata and alata adapt quickly.

Equal parts of your listed ingredients work great. You can omit peat moss if using sphagnum. Nepenthes tolerate various mixes if they hold moisture but drain fast. Our nursery mix drains very quickly to match our watering style.

Many Nepenthes root in water, especially fast growers. Pot them up when roots are about 1 inch long. Keep them shadier for a month to establish roots before moving to bright sun.

Good Growing!
Jeff Dallas
Sarracenia Northwest
www.cobraplant.com