If you live in the southern United States, growing flowers is easy. The secret is to find flowers that do well and don't need a chilling period or cooler temperatures to grow. Easy flowers to grow in the South are cosmos, zinnia, larkspur, sunflowers and many types of wildflowers. Most flowers that do well in the South thrive in average soil and provide lots of color in the garden. Plants that do well in the South are suitable for USDA Plant Hardiness zones 7 to 9. The hardiness zone is the coldest area the plant can thrive.
What Flowers to Plant in the South
Locate where you live on the USDA Plant Hardiness Zone Map. Most plant descriptions you find in your research material will tell you the zones where the plant will grow well.
Note whether the garden location you wish to plant your flowers is in sun or shade or stays damp or dry. Flowering plants that need frequent moisture need to be planted near a water source. Flowering plant descriptions will tell you light and moisture requirements.
Look in research material and find flowering plants that meet your criteria, paying special attention to the eventual size of the plant and bloom period.