http://allpurposeplantfood.com/ - Phil with Watch Us Grow shows how his Natural All Purpose Plant Food helps berries grow healthy and big.

Q: How is Watch Us Grow different from other water soluble plant foods such as Miracle-Gro, Peters, etc.? Why do gardeners prefer it over other plant foods?

A: In addition to the unique ingredient FOL-ADE™, there are a number of other differences which make Watch Us Grow attractive to gardeners and plant enthusiasts:
Watch Us Grow is a liquid, not a granular solid. It is therefore easier to mix, does not separate or settle out in the watering can, and will not harden over time. For commercial users, it will not clog your irrigation system. Watch us Grow maintains its effectiveness for a long time.

http://www.youtube.com/watch?v=D6_Oyfg5S_Q&feature=plcp&context=C37b3ee3UDOEgsToPDskKkMg2UqDdUDeEtso2vI9F-