If not, you should switch to a different kind of dog food that can provide for this requirement. This is particularly important for senior dogs as they are more prone to stomach disorders particularly constipation. As a dog ages, the internal system also begins to slow down.
Best Answer: You can mow when the grass is wet. It will cause the mower to clog up allot more and the clippings will be clumped together. You will most likely have to rake after you finish if want a good looking lawn. It is best to wait till the grass is dry.
If your lawn is really tall, and you need to get it down to the desired height, you may need to do multiple mowings, removing 1/3 of the grass each time. (Wait a few days between each mowing.) So, if you're targeting a 3-inch grass height, you should mow whenever your lawn reaches 4.5-inches. As to how often you should mow to achieve that, it will depend on how fast your lawn grows. One other thing to consider: If you have a huge riding mower, the tires will also be rough on the lawn. So, if you have to mow very often (once a week or more), you may end up harming the lawn.