Outsidepride Venus Flytrap Plant Seed - 10 Seeds Venus fly trap is grown as an indoor house plant, but may also be grown as a perennial outdoors in USDA Zones 8 - 10. This low growing plant only reaches 8 - 10 inches in height. This truly unique plant grown from flower seeds is a carnivorous plant. Yes, you read that correctly. It catches its prey, mainly insects and arachnids, with a trapping structure formed by the terminal portion of each of the plant's leaves and is triggered by tiny hairs on their inner surfaces. Speed of the venus flytrap closing can vary depending on the amount of humidity, light, size of prey, and general growing conditions. Sow 1 to 2 seeds per plant.