deep green?

[Dyannas son]

well my plants all have begun to flower most of my plants are not as deep green as they use to be now i know that this is from a lack of N what should i do??

 

[HGB]

well my plants all have begun to flower most of my plants are not as deep green as they use to be now i know that this is from a lack of N what should i do??

feed em some N

 

[Dyannas son]

can a give a plant the same amount of n during flower as in veg?