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Carnivorous Plant Growing Tips
| General Care | Venus Flytrap | Sundews | Butterworts | Bladderworts | Genlisea |
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Corkscrew Plant - Genlisea spp.

1:1 peat:sand
3" plastic pot
moist to very wet
full to part sun
tropical to cool temperate
medium to high
windowsill, terrarium, greenhouse
Genlisea are native to tropical South Africa, Madagascar, and South America. Like terrestrial bladderworts, Genlisea grow in typical CP conditions of warm, sunny, very wet, peaty soil.  They are common CPs in bogs, tepuis, and fens.  They frequently grow in association with sphagnum moss.
Genlisea thrive in a standard CP soil mix of 1 part sand and 1 part peat.  Though the sand-peat ratio is not critical, most prefer a more peaty mix, and some prefer live sphagnum moss.  Use mineral-free water and keep the soil very wet.  The tray method works very well.  Stand the pot in a tray or saucer and keep about 1/2 - 1” (1.25-2.5cm) of water in it at all times during the growing season.  They  prefer full sun, but can tolerate shade.  Some prefer indirect, low level light.  Most genlisea do quite well at room temperature, but a few prefer very warm or cool conditions.
Genlisea are tropical CPs and do not require dormancy.
Genlisea traps are underground and inconspicuous.  Their common “foods” are soil nematodes and protozoa.  They do a marvelous job of attracting and catching prey all on their own.  It is troublesome, difficult and unnecessary to feed them. 

Other Considerations
  • Like bladderworts, Genlisea are generally grown for their flowers.  They spread rapidly and provide a lovely display.  Several different species can be grown together.
  • Genlisea will readily propagate from “root division.”  Simply dig out a small portion of the plant and repot it in fresh, wet soil.
  • Repot every few years in a fresh CP soil mix, since the peat breaks down and can create poor drainage.  This is a good time to divide the plant.  This is best done in the spring, before active growth begins.
  • Genlisea are excellent terrarium plants.  Consider placing them in a vented terrarium under fluorescent lights with a timer set for 16 hours/day.  The lights should be about 6” from the plants.

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