Dionaea muscipula care instructions     

Mature size: VFT can reach anywhere from 3 to 5 inches, depending on the plant/cultivar.

Light: Full sun (however, if it is too hot, use a clothing shade to prevent leaf burn), or full-spectrum lights.

Soil: Peat moss and perlite (2/1, respectively) or pure sphagnum moss.

Feeding: Feed bugs, dried blood-worms, or fish food every 2–3 weeks (any brand is fine, as long as it doesn't have any minerals/additives). Only use fertilizer if you have plenty of experience growing carnivorous plants. 

Humidity: 50-80%.

Water: Always keep the soil/media wet (use the tray method and make sure it is sitting in water 24/7), provide water that is low in salts and minerals, such as rain, distilled, or reverse osmosis water.

Temperature: 30-85°F. 

Dormancy: Your VFT will go into dormancy automatically during colder months, but if you live in a tropical area, reduce temperatures to 32-55°F and shorten the photo-period to 10 hours, and provide less water, but do not allow it to dry out.