Re: N. ventricosa "porcelain form"
Ghan, this is more picky about what it grows in as well, and I've found that it doesn't do well in peat mixes, as it gets too acid and stays too wet too long. Longwood Gargens had them growing in orchid bark with a little LFS mixed in to keep it a little more moist. I have mine growing in cedar bark mulck with chopped tree-fern fiber, perlite, LFS and some charcoal on the top in about equal parts. I also added some NJ Pine Barrens sand recently to see if it helps. It's still just emerging from dormancy, and is in very slow growth now.
When it's in full growth, and producing pitchers, I'll give it some mild applications of fish emulsion fertilizer, with a few drops of liquid iron in the mix which also has many other trace minerals and elements. Fertilizing them when they're dormant and not actively growing can be diasterous, and I have lost a few plants thinking that a shot of fertilizer should give it a kick start, only to see it collapse in another month or two. I'll also spray in some of this fertilizer into the pitchers when they open.
There is an "alba form" which is very similar in shape and color, but doesn't get as large, perhaps they're from a similar region. - Rich
|