Answer: Pennington Fast Acting Lime is pet safe if used as directed. Be sure to allow the treated area to dry prior to allowing pets to return.Click to see full answer. Furthermore, is Lawn Lime safe for pets?Because burned and hydrated lime are caustic, extreme care should be used when applying these to your lawn. According to Virginia State University, calcitic and dolomitic lime are nontoxic to humans, wildlife and pets, which means they haven’t been found to cause illness or death when ingested.Also, how long does it take fast acting lime to work? Time. The amount of time it takes to raise soil’s pH level depends on the substance used and the starting pH level, but the process usually takes one to two years. Although you can raise soil pH faster or slower, doing so more quickly often has risks for plants. Additionally, will lime hurt your pets? Lungs, Nose and Throat Because lime can be such an irritating substance, it goes without saying that it can be dangerous for pets exposed to large amounts of lime dust. Dogs are known for their uncanny ability to go sniffing around where they sometimes shouldn’t — and any excess lime around your yard poses a risk.Is Pennington Lawn Booster safe for pets?Answer: Per the manufacturer there are no ingredients in the Pennington Sun & Shade Penkoted Grass Seed mixture that would be harmful to people or pets. It is best to keep pets out of the area during application and for a few hours after watering just to ensure the area is not disturbed.