Mike, it's 6-2-0. As with all fertilizers, it's the amount you apply that determines whether it could damage the plants, and also the release rate. The nitrogen in Milorganite needs microorganisms to release it so it's not all available at once. It has a very large amount of iron at 4%, more than the P! When you consider that iron is a micronutrient, that's a lot. You'd also want to supply potassium if the soil tests inadequate since the analysis is 0 for K. I would say you can burn plants easier with other things but I wouldn't go so far as to say anything is incapable of burning if mis-used.
