Flytraps benefit from a repot every year or two. Whenever you repot and rinse the media away from the rhizome, if it's ready to divide, it will be obvious (there will be two separate bulbs) and might even just fall apart. If the bulbs aren't completely separate, but you can see where it's starting to grow apart, you can also gently pry the bulbs apart.
i left my VFT without repot for about a year and i didn't need to look under the soil to know it was ready,the top was so crowded some leafs where shrivleing and dying from lack of light! when i repotted it i had about 4 plants from it
Dan Galley, Sarracenia Addict, and Trainee Horticulturist. If you have any rare Sarracenia that aren't on my growlist, send me a message!