Cant say Ive used it myself but I think Ive heard its good for plants. Unless you go down the EI route and dose NO3 and PO4 and trace a good fert for the non-EI tank basically needs to provide iron, often in combination with potassium. So check the contents list. It also helps if its cetelated (sp?) as this means the plants can absorb it better I think.
API leaf zone on my 'fish' fishtanks. These are others that are supposed to be good -> Seachem Flourish, Kent Botanic Grow, Waterlife Tropiflora and Tropica Master Grow. Got these from the pinned EI article