Last year about this time, we were enjoying the Rev's beautiful Red Asiatic lilies (see picture). This year, sadly, not so much--special Thanks for the lack of flowers in our planter boxes goes to the neighborhood cats and their bathroom habits.
Keep cats away from your flower beds and garden, and your flowers beautiful, with this tip.
Sprinkle orange rinds around the perimeter of your No Cat zone (i.e. garden, planters, etc.). The citrus aroma in the peels is too intense for a cat's sense of smell, which is highly developed, so cat's will scram and leave your plants free to bloom beautifully. Be sure to replace the peels with fresh ones about twice a week.