I am thinking about picking up one of these, as I hear they're about as tall a Drosera as you can get without going for one of the infamous Tuberous ones (which I doubt I have the experience needed to keep alive). (Although re-reading Savage Garden has me thinking D. dichotoma 'giant' might be worth getting too.)
However, I am a bit worried about picking one up, as I do not know if I have the conditions needed to grow them successfully. According to the ICPS Seedbank, there are about 3 or 4 types:
D. Filiformis Filiformis 'Typical'
D. Filiformis Filiformis 'Florida All Red'
D. Filiformis Filiformis 'Florida Giant'
D. Filiformis tracyi
I did see a hybrid on a certain store and mentioned in "Savage Garden":
D. Filiformis x 'California Sunset'
From what I understand, the 'tracyi' is the largest, growing up to 2 feet tall, but has white dew not red. The "Florida All Red" does not go into Hibernation without extreme conditions forcing it to, whereas the Typical and Florida Giant both end up going dormant in winter. Supposedly, the Canifornia Sunset is pretty cold tolerant as well.
I suppose my question is, I figure the Florida All Red would be ok for a Window plant, as my Cape Sundews et all are surviving just fine. However, in Zone 5 - 6 (Twin Falls ID 83301), would any of these survive the winter outside for dormancy?
Right now it is 38 degrees out and will hit the mid 30s overnight. Later this week we'll see a high of 40 and a low of 27 on the coldest day. Looking at WeatherUnderground's history, if 2008 was any indication of 2009, January and Febuary I should expect to see highs of mid 20s to 30s (and lows in the teens) turning into 40-50 highs and 20-30 lows in early Febuary.
In other words, cold. Would any of these Filiformis survive in my area as an outside plant, with or without protection of some kind? Heck, thinking about it, should I start worrying about my Sarracenias and Dionaeas that are outside?