However, fertilizers with phosphorus may be used on lawns that do not have a sufficient amount of phosphorus in the soil. Soil tests can easily be carried out. Instructions on soil testing are available through the University of Minnesota�s INFO-U by calling 612-624-2200 (metro) or by calling 1-800-525-8636 and then selecting message 468.

It is also illegal to spread any fertilizer on hard surfaces including streets and driveways