Alaska Fish Fertilizer is a good organic to mix with water when you water and will help the grow stage. You want the plant to be big enough and strong enough to flower and support flowers. You can also make your own "tea" like Shovehandle suggested and you can make your own Kelp tea if you live near the ocean, you can also buy kelp additives which give a nice sweet taste. I am using Fox Farms this year even tho I swore I would never, but it did save some sickly plants in the beginning and now all the ladies look so lush and green and flowering bigtime, I am not regretting it. I know the Fox Farms is not totally organic and kind of $$ so if I were you I would start with the compost tea thing. I am not using any specialty seeds but just a few from my last grow that crept through and have half Indica, half Sativa, maybe hybrids but they look incredible.