Quarrying activity has damaged several of the hills on which "N. northiana" grows, although this has apparently not affected the plants directly. In addition, natural populations of "N. northiana" have suffered from over-collection in recent years. Plants of this species have a high commercial value and are thus highly sought after by collectors. In their 1996 monograph "Pitcher-Plants of Borneo", Anthea Phillipps and Anthony Lamb wrote that "N. northiana" "has been over-collected nearly to the point of extinction". Despite this, the short-term future of the species appears to be secure, as most remaining plants are inaccessible to collectors.