Is it normal to only get (barely) 1 harvest from my cilantro plants before 2 of them died and the 3rd one went to flower?
Hi @Shari, welcome to the community!
Cilantro is a fast-growing and short-lived annual, that lasts up to 8 weeks. You may harvest it gradually starting from 3 to 4 weeks, or harvest in one go but not later than 8 weeks after planting. If you let it grow for too long it will bolt (flower) and will not produce more edible leaves, and eventually die back.
It is safe to use the app to get timed tips on plant care. Also, please see a video on how to take care of Cilantro.