Are fertilizers harmful to birds or pets?
Fertilizers that don’t contain herbicides or pesticides shouldn’t harm birds or pets. As a rule, it’s a good idea to water thoroughly after applying to help wash granules into the soil and off the grass blades. The situation is different with broadleaf weed killers, which work by sticking to the leaves. They should not be washed off for at least 48 hours after application. During this time, keep pets and children off the treated area. Label directions on pesticide products generally say to keep anyone, other than the applicator, out of the treated area until the spray has dried or the dust has settled.
