Nepenthes madagascariensis is a plant I recall ten years ago from reading about in carnivorous plant books. I recall it being somewhat rare in the wild, but was around in collections. Maybe I misread my books! It was a while ago. Anyhow, I bought this plant because it was incredibly cheap and I figured I'd experiment with it. It was considered a lowlander but my vendor said he had it growing in his greenhouse and could take lower temperatures. I can say that the plant has had some leaf deformity and burn from sun exposure at first. That was primarily my fault since I was fairly new at growing these guys outdoors. In winter  it did stress a little and really slowed down. It didn't produce any new growth until spring arrived. So this species appears to react similar to other borderline intermediates / lowlanders that I'm trying to crossover to outdoor conditions. I purchased a smaller N. madagascariensis from the Nepenthes Nursery that experienced some transplant shock upon arrival. It had some leaf deformity due to lower outdoor humidity as well. But the plant has acclimatized nicely and is handling night time temperatures into the low 40's without a problem. So N. madagascariensis appears easier to crossover to highland conditions than some other Nepenthes. I don't have much literature about this species from my Nepenthes books to compare my experiences to those from its native environment. It's a moderate grower that would probably do better in lowland conditions. For some reason, this Nepenthes hasn't been available for some time.

Cultivation: moderate outdoors, some winter stress, slower grower, probably easy and a more rapid grower in lowland conditions
Market availability: size 2, size 3 to possibly rooted cuttings ; limited lately
Species variability: none that I'm aware of other than locality differences
$ / size: inexpensive  $10.00 and up
Cuttings: none available for trade
Sex: unknown