Question
QUESTION: When transplanting Serracenia to a larger pot what type of mix should I use and proportions to mix my own mix?
Can I use just sphagum peat moss?

ANSWER: The three most common ingredients of most carnivorous plant mixes are sphagnum peat moss, silica sand (sand composed almost entirely of silicon dioxide or quartz grains) and perlite. I personally use the same mix for Sarracenia that I use for Venus Flytraps: by volume (not weight) 50% sphagnum peat moss (after uncompressing it if in bale form), 30% silica sand and 20% perlite.

However, I'm not a Sarracenia expert. You might wish to ask this same question of the expert, "Sarracenia Northwest" here at AllExperts.com, and it may be helpful to ask the question of Sarracenia growers who participate in carnivorous plant forums online:

CPUK Forum
http://cpukforum.com/

FlytrapCare.com Forum
http://flytrapcare.com/phpBB3/

Best wishes,
Steve

---------- FOLLOW-UP ----------

QUESTION: Is ok to use Vermiculite in stead of perlite?

Answer
Some people warn against vermiculite, but I wouldn't hesitate to try it if perlite is not available. However, because vermiculite compacts in time, I would add something else to the soil to keep it from becoming too dense and soggy for too long, such as silica sand or even some orchid bark. Other possible ingredients are chopped styrofoam (polystyrene foam) and plastic "BBs" (very small plastic balls). Anything that is inert (won't dissolve in water) will help to displace some of the growing medium so that it will dry faster and will break it up so that it will hold more air to prevent anaerobic conditions and rot.

Regarding sand, do not use river nor beach sand. They almost always contain many types of rock that are _not_ silica (not composed almost entirely of silicon dioxide or quartz). Instead, there are two main types of silica sand to use: mined from ancient natural deposits of silica ground into particles, and artificial, silica melted at extremely high temperatures and then crushed or fractured into grains of approximately the same size as natural silica sand.

If bags of silica sand cannot be found at home and garden stores, it can often be found at or located through businesses that use it for sandblasting such as auto body and repair shops, glaziers and signmakers, or at pool maintenance businesses.

Best wishes,
Steve