irrigation

could be watering habits, could be imbalance of nutes.. the fact it works inconsistently with different plants is a sign of imbalance. these plants are not nearly as esoteric as ppl try to make them out to be... not enough info to give suggestiosn. if you are choosing a vlume of water to give, you are watering wrong. how often you fertilize and such depends on numerous factors... you are either watering too frequently and/or poorly feeding the plant. observe, react with trial and error until you get it worked out.. may take a few grows. look into non-marijuana specifc brands of fertilizer... it's ubiquitous commodities.. don't pay for marketing nonsense and often inferior products made by amatuers with child-like cartoon graphics on the labels.

I'd check for male pods it's not clear on the pictures but I'd definitely recommend that you check for hermie plants happy growing and I am happy to help if I can send me better picture of the areas and I can say better