should i flush when using organics?

This is my first grow and I am nearing the 6th week of flowering. I am growing White Widow and I have been using Foxfarm Tiger Bloom and Big Bloom since 12/12. The soil is Foxfarm Ocean Forest Potting Mix. My question is that because my grow is 100% organic do I still have to flush for the final two weeks of flowering?

I never used fox farm nutes but wouldnt that be a chemical fertilizer?
organic is more like using dead leaves, manure, blood meal and so on...

But yeah id flush no matter what you are using, why not flush? Just make sure its finished flowering, flushing
makes your smoke healthier and taste a hell of alot better.