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Cole_Robbie · February 15, 2014

Rooting hormone is so cheap that making your own out of willow would be more of a novelty than anything else. I think most of the value of kelp is in its micro-nutrients, absorbed from the ocean.

February 15, 2014	#5
Cole_Robbie Tomatovillian™ Join Date: Jun 2012 Location: Illinois, zone 6 Posts: 8,407	Rooting hormone is so cheap that making your own out of willow would be more of a novelty than anything else. I think most of the value of kelp is in its micro-nutrients, absorbed from the ocean.