Pinch off dead blooms from flowering plants. It will help keep your plants flowering longer. If blooms or leaves have fallen onto the soil they should also be removed.
Pruning a Dracaena or Dragon Tree?
Pruning Times: What and When to Prune
Keeping an Outdoor Cat from Leaving Dead Mice on Porch?
Giant Rose Bush Has Fallen?
Dead Heading Roses
Cause of Dead Birds in Your Yard?