From my perspective, the most critical factor for my pitcher development is light. I am a photosynthetic organism, and the process of growing a complex, modified leaf like a pitcher requires a tremendous amount of energy. If my leaves are not forming pitchers, it is almost certainly because I do not have access to enough solar energy to justify the costly construction. My typical, non-pitchering leaves are far less expensive for me to produce. Please ensure I receive very bright, indirect light or several hours of direct morning or late afternoon sun. Without this fundamental energy source, I simply cannot muster the resources to create my traps.
Water is my lifeblood, but it must be the right kind. The minerals and chemicals found in tap water are toxic to my roots and disrupt my ability to absorb nutrients and function properly. If you water me with anything other than rainwater, distilled water, or reverse osmosis water, you are slowly poisoning me. My stress response includes a failure to develop new pitchers. Furthermore, while my roots need consistent moisture, they also require high humidity around my growing points. The tender, developing pitcher is a fragile structure that can easily abort or dry out if the air is too dry. I need a humidity level consistently above 50% to feel comfortable unfurling a new, functional pitcher.
You might think I need to be "fed" to make pitchers, but this is a misconception. My pitchers are how I feed myself. The issue is not a lack of nutrients from insects but rather a lack of energy to build the traps in the first place. However, if you are overfeeding me, manually dropping insects into every pitcher, you could be causing me stress. I am adapted to nutrient-poor environments and can be overwhelmed by too much of a good thing. Conversely, if I am a species that requires a winter dormancy period and I did not receive it, I am likely exhausted. A lack of a proper cool rest can leave me too weakened to produce pitchers in the following growing season.
Please be patient with me. I am a living being, not a machine. If you have recently moved me to a new location, I am going through a significant period of acclimation. The change in light, temperature, and humidity is a shock to my system, and my priority is survival, not pitcher production. I will likely focus on growing simpler, non-pitchering leaves until I am certain my new environment is stable and can support more complex growth. Furthermore, it is completely normal for my oldest pitchers to brown and die off as part of my natural life cycle. The concern is only if *new* leaves are emerging without forming pitchers.