Answer: Lots of plants will grow well in containers on your deck. NC State University recommends the following:
Musk Mallow (Abelmoschus moschatus) flowers in Oriental Red, Pacific Light Pink, Pacific Orange Scarlet, Red, red/white. Full sun, very heat tolerant, grows 22" high and 20" wide. Dahlberg Daisy, Yellow, Very heat tolerant, Full sun, Drought tolerant, 6" x 15".
Dianthus hybrids of D. barbatus, D. chinensis, and D. deltoides - too many to list - Color Magician, Princess and Telstar series do very well for us as a winter annual- Parfait is best series for summer, White, pink, red, violet, Prefers cool temperatures, Full sun to partial shade, 16" x 16".
Evolvulus (Evolvulus glomeratus subsp. grandiflorus), Blue Daze, blue flowers, very het tolerant, full sun, 12" x 36".
Blanket Flower (Gaillardia pulchella), Red Plume, Yellow Plume, Yellow Sun, Red, yellow, heat tolerant, Full sun, Drought tolerant, 14" x 22".
Globe Amaranth, Gomphrena (Gomphrena globosa) Buddy Purple, Buddy White, Dwarf Buddy, Lavender Lady, Rainbow Purple, Rose Improved, Strawberry Fields, and Woodcreek Red do well for us; Gnome is an excellent dwarf series and flowers in Lavender, orange, pink, purple, red, white, Very heat tolerant, Full sun 24" x 30".
Mealy-Cup Salvia (Salvia farinacea), Blue, white, Very heat tolerant, Full sun, Drought tolerant, 20" x 24".
Melampodium, Yellow, Heat tolerant, Full sun, Drought tolerant, 30" x 34".
Mexican Heather (Cuphea hyssopifolia), Desert is a cultivar from seed; Mexican Heather is also grown from cuttings, White, pink, lavender, Very heat tolerant, Full sun, Drought tolerant, 10" x 20".
Verbena (Verbena canadensis), Homestead Purple, Tex Tuf Purple, Texas Appleblossom, Michelle, Silver Anne, Sissinghurst, Batesville Rose, Fiesta in Blue, pink, red, rose, white, Very heat tolerant, Full sun, Drought tolerant, 6" x 18".
Hope these suggestions are helpful.
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