Choosing a Healthy Venus Flytrap: Avoid Death Cubes, Buy from Specialists

Kate in Taiwan sees three flytraps at a flower market: red medium traps, green small traps, green large traps. All in dark, gooey soil with perlite (likely peat). She asks which to pick and how to get larger traps.

Don't Buy from General Stores

Store flytraps are often in fertilized soil, wrong water, low light, or "death cubes" (domes that kill them). Buy from specialist nurseries like cobraplant.com or californiacarnivores.com (check Taiwan shipping).

If You Must Buy Locally

• Pick the plant with red trap coloration—indicates recent strong light.
• Ensure unfertilized sphagnum peat moss, no dome, brightest spot in nursery.
• Avoid "death cubes" entirely.

Trap Size & Feeding

• Adult traps reach 1″+ (4–6″ plant width). Size increases with age, not just feeding.
• Insects provide nitrogen/phosphorus for growth; plants survive without prey but stay smaller.
• The dark, gooey soil with perlite is likely peat/perlite—acceptable if unfertilized.

For long-term success, source from growers who understand carnivorous plant needs.