Full sun is defined as a place where plants will get at least six hours of sunshine a day. Full-sun perennial plants will produce the best flowers and bloom for several years when they get the sun they need. The United States is divided into 11 planting or hardiness zones. The lower 48 states range from zone 3 in the north to zone 10 in southern Florida and southern California. Hawaii is zone 11 and Alaska is a mix of zones 1, 2 and 3.
Showy sedum (Sedum spectabile) is also known as showy stonecrop and balloon plant. The plant grows as a clump up to 2 feet tall and 2 feet wide. It produces 3-foot long, blue/green egg-shaped leaves and tiny pink star-shaped flowers that grow in clusters. Showy sedum dies back to the ground in the winter and re-appears the next spring. The plant likes sandy, well-drained soils and full sun. Showy sedum does well in a rock garden, a perennial garden or as a border plant. It is hardy in zones 4 to 9.
Butterfly weed (Asclepias tuberosa) is also known as butterfly milkweed and pleurisy root. The plant grows to 2 feet tall and produces bright orange or red flowers that grow in clusters that give way to green seed pods. It will die back to the ground in the winter and grow again in the spring. Butterfly weed likes full sun and sandy but well-drained soils. The plant does best in a garden setting and can be found growing wild in fields and meadows. The butterfly weed got its name from the many species of butterflies that are attracted to the flowers. Butterfly weed is hardy in zones 4 through 10.
Blue False Indigo
Blue false indigo (Baptisia australis) grows in clumps to from 35 to 47 inches tall and a spread of 29 to 35 inches. The plant produces gray-green leaves and deep blue flowers that bloom in late spring and early summer. It needs full sun and loam, sandy or clay soil that is dry to moist, but not wet. Blue false indigo makes a good border plant and can be grown in containers. It will attract butterflies, but deer and rabbits will leave it alone. Blue false indigo is hardy in zones 4 through 8.
Peegee hydrangea (Hydrangea paniculata) is also known as panicle hydrangea. The shrub can grow up to 10 to 25 feet tall and the same width. It produces heavy clusters of white flowers that turn to pink in the summer and a rust color in the fall. Plant the peegee hydrangea where it will get most of the sun in the morning and early afternoon and some shade in the late afternoon. The peegee hydrangea does well in a mixed shrub hedge. It is hardy in zones 3 to 8.