two relevant warnings: (1) change the water every few days or it smells awful (2) around the third regrowth cycle the flavor starts become very light since they aren’t getting any soil nutrients which is sad but they still look pretty as garnish
I usually buy plants and flowers already somewhat mature. But got these $1 marigold seeds from the hardware store and they sprouted within 7 days. Now I spend mornings checking on my babies. proud mama!