I read a little bit since I posted and I was wrong about worm tea. It is considered an organic fertilizer. I haven't used it, but according to what I'm reading it does contain enough nutrients (nitrogen-phosphorous-potassium) to be used as a fertilizer. Worm castings is the one that is only used as a suppliment. I use a different organic fertilizer once a month to replace my normal balanced commercial fertilizer and I've had good results. The problem is that most organic fertilizers do not tell you how much of each nutrient is in the product. You certainly can experiment with worm tea and superthrive if you want to go organic. Another plan would be to alternate between worm tea and a balanced fertilizer. Either way, I would love to hear about the results you get. Good luck.
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