Top dress with fresh potting soil. Buy summer flowers. This is the fun spring task. Be sure to choose the flowers appropriate for summer bloom, and not the winter stock the nurseries are trying to unload. At this time of year, it is usually better to choose the slightly undersized stock rather than the plants in full bloom.
Spring is a great time to plant perennials, shrubs and new trees, too.
Many bulbs, such as gladiolus, can be planted at two-week intervals. When the planting times are staggered, you will see a succession of flowers rather than one show. I use this method to contrast different color combinations throughout the season. Make some lemonade and try out the hammock. Re-test it frequently throughout the year to make sure it remains in perfect working order.