Annuals last just one summer. Since you want as much growth and bloom as possible, you can fertilize them pretty regularly. Miracle-Gro is a good choice, just remember to water the plants first to avoid burning with the fertilizer. Perennials live many years and perform better with a gentler fertilizer like Flower-Tone. Vegetables thrive with Garden-Tone and Tomato-Tone. Have you ever had blossom-end rot where the bottom of the fruit rots? Tomato-Tone has extra calcium to prevent the problem.