asdalton_nospam at uiuc.edu
Thu Jun 28 16:11:25 EST 2001
"Bill" <wmf521 at hotmail.com> wrote in message
news:zHyY6.134$B5.4516 at news.uchicago.edu...
> I have a purpea sarracenia and a sarracenia flava. Kept in a terrarium
> the following
> -10 gallon
> -1 15 watt flourescent grow light (14 hour photoperiod) with relatively
> direct sun from window sill
Those single-tube fluorescent aquarium hoods are pretty dim. But since your
other plants are growing, they must be getting enough sunlight to make up
> -watered overhead daily, while sitting in 1/2" water
> -80-100% humidity at all times
This might be the problem. Remember that Sarracenia species are native to
North America, where high temperatures and super-high humidity almost never
go together. Even on a hot humid day (100 deg. F, with dewpoints above 70
deg. F), the relative humidity will be much less than 80%.
> -terrarium cover removed 30 minutes daily for air circulation.
> -75-90 degrees f. during day, cooler at night
> Sundew, lowland nepenthes, butterwort, etc.... seem to be fine, but my
> sarracenia (American pitcher
> plant) keeps growing pitchers with brown tops.
> Any suggestions/advice are welcome.
You probably already know this, but make sure that you're using pure water
(rain water, distilled, or reverse osmosis). In any event, I would take
both of the Sarracenia species out of the terrarium and put them in direct
sunlight on the windowsill or outside. I keep a Sarracenia flava and S.
purpurea on my porch in Urbana, Illinois, and they are growing well.
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