#11 Rose of Sharon
Rose of Sharon is perfect for growing a container of different sizes from medium to large because they can grow up to 8-10 feet tall on the ground.
#12 Salvia
Salvia prefers to receive full sun. Keep in mind that the plant needs the soil moist and well-drained.
#13 Bellflower
This flower is available in pink, violet, white, and blue colors. You can grow it in small to medium-sized containers and hanging baskets.
#14 Summer Snapdragon
Summer Snapdragon is available in colors like pink, white, red, purple, and especially blue. It has a long blooming period and is easy to grow in a container.
#15 Blue Phlox
Blue phlox features fragrant lavender-blue or powder blue flowers in spring. Growing them in containers under partial shade in humusy, moist, well-draining soil.
#16 Geranium
Geranium is low maintenance and suitable for container planting. You can even grow it in hanging baskets and window boxes.
#17 Lily of the Nile
Lily of the Nile has spherical clusters of funnel-shaped blue flowers that can brighten up your garden or indoor space. It is drought tolerant and needs moderate watering.
#18 Viola/Pansy
Viola/Pansy come in almost every color, and you can easily find a variety in the shade of blue.
#19 Virginia Bluebells
Virginia Bluebells has stunning clusters of baby blue flowers that are loved by both bees and butterflies. Growing it in pots under the dappled sun or partial shade.
#20 Grape Hyacinth
Grape Hyacinth offers beautiful blue color and looks like a miniature hyacinth. Easy to grow in containers under full sun or partial shade and water moderately.