Q: About fertilizer and hamburger meat.
A: As a good rule, never fertilize. Most fertilizers will kill carnivorous plants.
Only a few types seem to like (or tolerate) fertilizers, and for these use
Miracid. Peter's 30-10-10, Epiphyte's Delight, and Maxsea are
highly recommended by other growers, but I haven't used them
myself.
As for feeding your plants hamburger meat, that is
a fine way to kill them. Carnivorous plants expect insect prey, not
small fragments of cows. If you don't think there is much difference,
consider: would you eat a burger made of crushed insect viscera? Look at the photograph above, showing the contents of a typical
Sarracenia pitcher. Do you see any little cows? I didn't think so. What do you see? That's right...bugs.
If you wish to capture a few insects and horrifyingly feed
these live animals to your plants, enjoy! After all, that is what this
whole fascination with carnivorous plants is all about, isn't it? Note that
there are a number of subtleties to feeding your plants. For example,
peruse and enjoy my several FAQ entries on how to
feed Venus flytraps
(beginning here).
Do not feed your plants pesticide-killed insects.
Page citations: D'Amato, P. 1998a; Rice, B.A. 2006a; personal observation.