gREEn7o0answered grow question 3 years ago In order to pinpoint what is wrong we need info. Would need to see what is happening to see where it is going wrong.
How big are they getting?
What kind of symptoms are they having?
Are they dying as seedlings, vegetative stage, or just not flowering, or flowering poorly?
What size pot?
How much water are you giving, how often?
What kind of nutrients and amendments are you using?
Is it indoor, outdoor?
Are there signs of insects or other pests?