twigs wrote:My Ventricosa lost all its pitchers after I got it (I don't think I refilled the pitchers). It keeps groiwng new leaves but none of the pitchers ever balloon. (I've had it for like 4 months)
It really sucks having a Nep without pitchers... its pretty boring looking, but I keep hoping one day it will get happy and pitcher for me.
Your plant not producing pitchers could be any number of things. Here's some tips that helped me when I started growing nepenthes. It's not an exact science, you just try to get as close as you can -
WATER
First, don't overwater - you need the pot to drain into a tray. Water the plant from the top slowly JUST UNTIL the water starts to leak into the tray (don't fill the tray). Don't water it again until the soil just starts getting dry. Repeat process forever, you'll get the hang of it. Reverse-osmosis or distilled water only.
HUMIDITY
Above 70% (ideal is ~85%). Lower humidity can prevent pitchering.
IDEAL TEMPS
Ventricosa is a highland Nep that can handle more variations to ideal highland conditions than any other highland (that I know of). Ideal temps are 80's (or up to low 90's) in the day, mid 50's (up to ~70) at night, but temp should ideally drop below 60 every night. Growing them under constant high-medium heat (like you would a lowland nep) or otherwise outside of this range of temps can also be a cause for slow-growing or 0 pitchers.
LIGHT
Full diffused sunlight (south-facing windowsill) or strong fluorescent light at 6500K seems to work best - I used 14-16 hour cycles with six 6500K T8 GE fluorescents.
SOIL
A good soil mix should retain some moisture and also drain well. A good soil mix is:
- 1 part vermiculite
- 1 part perlite
- 1 part peat moss (sphagnum, the same stuff you'd use for a VFT or Sarracenia).
- 1 part "fine" orchid bark (put "whole" orchid back in a baggy (a THICK baggy, ot two) and hammer the crap out of it, and then crush what's left with your fingers if you can't find "fine", that's what I did). It doesn't have to be sand-fine - very fine "sand-like" pieces mixed with many pea-sized and some thumbnail-sized pieces is good.
* Instead of the orchid bark, you use coconut husk instead.
* Some also use a 1/2-inch bottom-lair of washed sand or play sand to prevent loss of peat moss.