Yeah, I'll agree with my growmies here that she looks vastly underwatered... when you water, you want to make sure you're getting at least 10-20% runoff ... and you also want to let that runoff sit in the saucer or tray or whatever you have under her for about 15 minutes or so to see if the soil will soak it back up - if it does, you know she needed more. When I do this, if the soil soaks it back up, I give more water... and I keep giving water until the soil doesn't soak any more back up. This is NOT over-watering - over-watering is the state of being constantly wet... what this does is ensure that all the soil in the pot has moisture to attract and quench the thirst of the roots...roots will stop growing if they hit dry soil... The other thing it does is to rid the soil of any excess nutes or salts...
But I'm also seeing a definitely start to some calcium issues - those yellowing leaves midway and on the top... calcium deficiency results either from giving the plant too much nitrogen causing a lockout or the pH not being in a good range. A pH of 6 is the lowest you should go in soil - preferable would be 6.2-6.3. So I'm thinking that if you haven't been watering until runoff, the grow nutes, particularly nitrogen, have built up in the soil and need to be flushed out. That means running 3x the pot volume of pH'd water through the pot... in your case, you would need to run 12 gallons through... but give her 1/2 strength of your bloom nutes in the final gallon. I would also urge you to find some good calcium amendments you would feel comfortable using with your organic grow. The other thing I will recommend is that you use some Langbeinite which has an NPK of 0-0-22 that would really help your flowers. I use 1 tablespoon of it sprinkled on top of my soil once a month for my whole grow.
Good luck..