Flytraps are happy in a variety of growing conditions including frost or light freeze; outdoors, windowsill, terrarium or greenhouse is fine. They will thrive in full sun and develop their best red colours in very bright light.
Soil should be evenly moist. Water from below with mineral-free water such as RO, distilled or rainwater. The tray method filled with 1-2.5cm of water, and the potted flytrap placed into it works best during the growing season.
As days shorten and temperatures drop, plant growth slows. It may appear to be dying, losing all its traps, however it is likely only going dormant. When this happens don’t worry, let it rest, its normal. Reduce watering by allowing the tray to become dry before topping up. The soil should always remain moist. Provide cooler temperatures during dormancy i.e. a patio or garage. In spring, return it to its position and await new growth.
Venus flytraps feed monthly during active growth. Allow plants to catch their own prey and never feed them meat or cheese. Indoors they will still attract and capture insects. Traps work for 3-4 feedings then turn black. You may trim these away as they will be replaced. Avoid triggering the traps yourself, unless feeding. This wastes energy and if repeatedly done, may kill it. Once or twice is ok though.
Remove the flower spike when it forms as this weakens the plant, possibly even to death.