All these flowers can bear the Oklahoma summer heat and thrive in full sun. You can also grow them in containers. When summer heat kicks in, rely on these drought-tolerant plants to hold their own — and still look beautiful.
Angelonia
Produces numerous snapdragon-like blossoms in shades of lavender, purple, pink, or white. It is awonderful annual plant that copes well with heat and flowers throughout the season.
Canna
A profusion of large brightly colored blooms tops lush, green tropical foliage.
Black-Eyed Susan (Rudbeckia)
Free flowering daisies in cheerful colors ranging from yellow to bronze to mahogany. Perennial plants will self-seed readily.
Coneflower (Echinacea)
A perennial plant with daisy-like flowers in many vivid bloom colors in mid to late summer. Butterflieslove the flowers, birds love the seeds, and you will love the long lasting bouquets.
Coreopsis
Mounded perennial plant with bright yellow “daisy” blooms May through September. Several different varieties with varying bloom colors and sizes and different leaf texture
Daylily
Perennial with strap-like leaves form 2-4 feet tall mound with 3-5 inch flowers in several colors.
Gaillardia (Blanket Flower)
Flowers are red, bronze, or yellow with central eye of yellow, brown, or purple. Daisy-like 3 inch flowers from June to Sept. Perennial forming 2 feet wide mounds.
Lantana
Low-maintenance annual blooms all season long. Flowers come in several colors, including red, yellow, pink, orange, purple and multi-colors. Very drought tolerant reaches 1-3 feet tall and wide.
Tropical Hibiscus
The reason behind the popularity of hibiscus is they are easy to grow. This eye catcher produces shiny green leaves and large, showy blooms up to 6 and 7”. With vibrant colored blooms and exceptional heat tolerance, this plant. This lovely shrub can reach up to 2-3′ tall and wide.
Penta
Clusters of star-shaped annual flowers in shades of red, white, pink, and purple. Pentasare attractive to butterflies and hummingbirds, withstands full sunlight, and needs little to no care.
Periwinkle (Vinca)
Large, brightly colored annual flowers on an upright, mounding growth habit.. They produce bouquets or carpets of flat blooms with great foliage. Mix and match several complimentary colors together for a great looking bed!
Purslane
Flowering purslane forms a dense mat of rose-like flowers all summer. It is easy to grow annual.. One-inch flowers in a rainbow of colors, from scarlet to purple, yellow or pink.
Russian Sage
This silver leaved perennial plant has blue upright blooms and smells like sage. It is drought and frost tolerant. This Russian Sage can reach 30-36 inches tall and 20-38 inches wide.
Salvia Greggi
Easy to grow perennial and reliable performer with flowers in shades of red, coral, and pink.
Salvia May Night
Produces multiple deep blue-purple blooms on spiky stems atop its deep green foliage. Dense, well packed flower spikes with gray green foliage. Easy to grow perennial.
Scaevola
Large, spreading annual plants constantly covered with hundreds of dainty, fan-shaped flowers. Quick grower, flowers profusely, and loves the heat if watered regularly.
Sedum
Are well-known perennials for their distinctive fleshy foliage and come in a wide range of shapes and sizes – from upright varieties to ground-covers. Star-shaped flowers are usually in clusters or sprays that often change color throughout their bloom time.
Sweet Potato Vine
It produces a variety of boldly colored foliage, ranging from green, variegated and deepest, darkest purple, nearing black. This annual plant is desired most for its vivid foliage, rapid vigorous growth, heat tolerance, and trailing/vining growth habit .
Homestead Verbena
Spreading in habit with clusters of rich colored flowers throughout the entire summer. Excellent perennial for ground cover, edging, or rock gardens. Attracts bees and butterflies.
