Are ashes from the barbecue grill safe to apply your lawn?

It depends. Wood ash primarily consists of potassium, phosphorus, calcium, and magnesium. In small quantities, wood ash can provide necessary nutrients for your plants. However, wood ash has a very high pH, which means that it is very alkaline. If you use too much wood ash, or if your soil is already alkaline, the ash can raise the pH of your soil to a level that is harmful to plants. To use wood ash safely, you can mix it with compost or other organic matter before applying it to your lawn. This will help to reduce the pH of the ash and make it less likely to harm your plants. You can also apply wood ash in the fall or winter, when your lawn is not actively growing. This will give the ash time to break down and release its nutrients into the soil before the growing season starts.

Overall, wood ash can be a beneficial addition to your lawn, but it is important to use it in moderation and to take steps to reduce its pH before applying it.