The Science Behind Red Venus Flytrap Traps: Anthocyanin, Fly Attraction, and Selective Breeding

The Science Behind Red Venus Flytrap Traps: Anthocyanin, Fly Attraction, and Selective Breeding

Pigment Mechanism

Red color comes from anthocyanin (like melanin in human skin), expressed under bright UV light. It's a genetic potential triggered by sun exposure.

Evolutionary Function

Flies are attracted to raw meat; red trap interiors mimic this, luring egg-laying flies.

Breeding Extremes

Growers select and cross-pollinate plants showing more/less red over generations—like breeding dogs from wolves. This yields all-green, all-red, saw-tooth, fused-trap, giant-trap cultivars.

All-green traps still catch prey; whether red traps catch more is an open research question.

Good growing!