I have a hanging pitcher plant that is thriving. It is all green and growing really well, however when the pitchers dry and die before forming on each leaf. So the plant is blooming but the pitchers are dying before they form. Pics attached ... Any ideas why this would happen?
unless you provide the exact environment that it needs, it will start to deteriorate very fast.
There are about as many reasons for this to happen as their are species of these plants.
The good news is that the one you have appears to be one of the more forgiving of the genus.
Things that can cause this are many and include nutrients into eh soil mix around the root zone, underwstering, putting the plant un any soil at all (they require a soilless mix of sphagnum and perlite since it contains no nutrients that will burn the roots. These plants feed solely through the insects they consume.
Other reasons include low humidity, sitting in stagnant water, too much light, disease, insect damage, chemical burn, bird droppings in the plant or on the soilless mix, and low temperatures.
You have quite the long list of problems to rule out, but this species will be most tolerant of some of those conditions being less than perfect.
This will offer more information on their care but keep in mind that you never fertilize the soil. You fertilize when it cant get insects by spraying with a quarter strength orchid fertilizer on its leaves:https://www.gardeningknowhow.com/houseplants/pitcher-plants/growing-pitcher-plants.htm
I have it in the hanging pot outdoors. I live in Southwest Florida. I’d like to repot it. Spag moss and orchid mixture OK to repot it?
Actually, that mixture is just fine! The best will be Sphagnum and perlite, at around 30 percent perlite. (Some people split 50/50 which is fine, too.)
These will take quite awhile to root, so it will be necessary to do these in an area where the humidity can be kept very high.
This article will help you to propagate Nepenthes: https://www.gardeningknowhow.com/houseplants/pitcher-plants/rooting-pitcher-plant-cuttings.htm