In this comprehensive guide, we will navigate through a rich tapestry of flowers you can delightfully sow in Zone 7 during August, suitable for both seasoned gardeners and newcomers alike.
Annual Flowers to Plant in August
Marigolds
Marigolds are one of the most beloved annual flowers, and for good reason. They flourish in the warm weather of August, boasting vibrant shades of orange, yellow, and even deep red. Marigolds serve a dual purpose: not only do they brighten up your flower beds, but they also act as natural pest deterrents. Planting them in August gives them a chance to establish themselves, and with proper care, they’ll flourish until the first frost. They thrive in full sun and appreciate well-drained soil, making them a perfect choice for a bright and lively garden.
Zinnias
Zinnias are another excellent choice for August planting. These cheerful blooms come in a variety of colors, from vibrant pinks to sunny yellows, and their long-lasting flowers can elevate any garden space. They are relatively low-maintenance and thrive in hot weather, making August an ideal planting time. Planting zinnias in August allows for a robust growth cycle, leading to a bountiful display by early fall. Opt for a mix of heights and colors to create a stunning visual appeal, and enjoy these flowers through until the chilly days of autumn.
Sunflowers
Who doesn’t love sunflowers? August is the perfect time to sow these giants of the flower world. Sunflowers not only add a touch of whimsy to any garden, but they are also incredibly easy to grow. Their tall, sturdy stalks are topped with large, cheerful blooms that follow the sun as it moves across the sky. Sunflowers thrive in full sunlight and can grow rapidly, typically maturing in about 70 to 100 days. Therefore, planting them in August means you’ll be treated to a beautiful display before the end of summer.
Cosmos
Cosmos are a gardener’s delight, characterized by their feathery foliage and delicate flowers that dance in the breeze. These annuals are remarkably resilient and adapt well to various soil conditions. August planting allows you to take advantage of the lingering warmth, enabling cosmos to bloom profusely until frost arrives. These flowers come in a range of colors, including white, pink, and purple, allowing for creative expression in your garden. They attract beneficial pollinators, making them excellent companions for other plants.
Calendula
Radiating warmth and sunshine, calendulas, or pot marigolds, are another annual flower that can be planted in August. These hardy bloopers love the sun and can withstand slightly cooler temperatures, making them perfect for late summer sowing. Calendula flowers are not only beautiful but also edible, providing a burst of color to salads or garnishes. Their bright orange and yellow flowers can bloom well into the fall, ensuring that your garden maintains its vibrancy even as temperatures drop.
Perennial Flowers to Plant in August
Echinacea (Coneflower)
Echinacea, commonly known as coneflower, is a striking perennial that enlivens any garden with its daisy-like blooms. August is a perfect time to plant echinacea, as these flowers are hardy and can adapt well to different conditions. Not only are they aesthetically pleasing with their strong, upright stems and large central cones surrounded by vibrant petals, but they are also highly attractive to pollinators such as bees and butterflies. Plant them in well-drained soil and full sun, and you’ll enjoy their beauty for years to come.
Black-eyed Susan
Black-eyed Susans are quintessential summertime flowers that can easily be planted in August. Their eye-catching yellow petals with dark brown centers offer a burst of color that can brighten up any landscape. They thrive in well-drained soil and full sun, and once established, they require minimal care. Their resilience makes them ideal for those looking to create a low-maintenance garden that still dazzles with an abundance of blooms.
Chrysanthemums
Mums, or chrysanthemums, are the flowers of fall, and August is the opportune time to get them into the ground. Planting these perennial favorites in August will allow them to establish strong root systems, resulting in healthier blooms as the weather cools down. Available in an array of shapes and colors, chrysanthemums can be used in various settings, from beds and borders to container gardens. They are also known for their longevity in the garden, often lasting well into late autumn.
Coreopsis
Coreopsis, often called tickseed, is a charming perennial flower that boasts bright yellow and maroon blooms. Planting coreopsis in August gives these plants time to settle in before the cooler months. They thrive in full sun and are drought-tolerant, making them perfect for those who want vibrant flowers without the fuss of frequent watering. The cheerful blooms not only add color to your garden but also attract butterflies, enhancing the local pollinator population.
Sedum (Stonecrop)
Sedum, or stonecrop, is a versatile perennial that can thrive in a variety of conditions. August is an ideal time to plant sedum varieties that can handle the heat and require little maintenance. With their fleshy leaves and stunning clusters of flowers that bloom in the fall, sedums add texture and depth to gardens. They are drought-resistant and perfect for rock gardens or as ground cover, making them a practical choice for low-maintenance landscaping.
Bulbs for Spring Blooms
Daffodils
If you’re dreaming of a colorful spring, August is a great time to plant daffodil bulbs. Known for their trumpet-shaped flowers in cheerful yellows, whites, and oranges, daffodils are among the first flowers to bloom in the spring. Plant them in well-draining soil in a sunny spot, and they’ll bring joy and color, often popping up just as winter fades away. Make sure to plant the bulbs about three times as deep as their height for the best results.
Tulips
Another classic bulb to plant in August for a vibrant spring display is the tulip. These exquisite flowers come in a myriad of colors and sizes, making them perfect for adding a touch of elegance to your garden. Tulips require a chill period to flower in spring, which is why August is the right month to plant them. Choose a sunny spot with good drainage, and your tulips will reward you with breathtaking blooms come April and May.
Crocuses
Crocuses are one of the earliest signs of spring, and planting them in August ensures they’ll be ready to announce the change of seasons. These tiny, vibrant flowers bloom in various shades, including purple, yellow, and white. They prefer well-drained soil and full sun, and once planted, they can multiply over the years, creating a stunning carpet of color. The added bonus is that they are often left untouched by deer and pests.
Hyacinths
Hyacinths are known for their lush, fragrant blooms and can be planted in August for delightful spring flowers. Their dense flower clusters come in rich colors including blues, pinks, and whites, making them a favorite for gardens and floral arrangements alike. Plant hyacinth bulbs in clusters to create a stunning focal point in your landscape, and enjoy their lovely scent wafting through your garden in early spring. These bulbs thrive in well-drained soil, so good drainage is key.
Biennial Flowers to Plant in August
Foxglove
Foxglove is a majestic biennial flower that can truly elevate your garden. Though they require patience, as they bloom in their second year, planting them in August means they will establish themselves over the cooler months and reward you with tall spikes of tubular flowers in hues of white, pink, purple, or yellow the following spring. They prefer partially shaded areas and rich, well-draining soil. If you leave some blooms to self-seed, you’ll have beautiful foxgloves returning year after year.
Hollyhocks
Hollyhocks are truly nostalgic flowers with their towering spikes and delightful blooms that can reach several feet in height. Planting hollyhock seeds in August means you’ll be rewarded with a breathtaking display the following summer. They prefer sunny areas and well-drained soil. With a variety of colors ranging from soft pastels to bold shades, hollyhocks add a historic feel to your garden. Growing hollyhocks can be as simple as letting them reseed and create a beautiful backdrop to any cottage garden.
Canterbury Bells

Canterbury bells are whimsical perennial flowers that will charm your garden if planted in August. They grow to a desirable height and produce cups of color that can range from blue to pink and white. These biennials take some time to establish, but they are worth the wait as they bloom spectacularly in their second year. They thrive in well-drained soil with plenty of sunlight, and their bell-shaped flowers will surely add an enchanting touch to your flower beds.
Wildflowers to Plant in August
Asters
Asters are a beautiful option for adding a burst of late summer and early fall color to your garden. Planting aster seeds in August allows them to establish roots that will bloom profusely in late fall. Known for their star-shaped flowers that come in shades of purple, blue, and pink, these wildflowers are not only lovely but also vital for pollinators. They flourish in full sun to partial shade and thrive in various soil types, making them a versatile addition.
Goldenrod
Goldenrod is a native wildflower that blooms beautifully from late summer into fall. Its tall spikes covered in small yellow flowers provide essential late-season pollen for bees and butterflies. Planting goldenrod in August can provide a great addition to your landscape while supporting local wildlife. This perennial is drought-resistant once established and works well in naturalized settings or alongside other native plants, giving your garden a more organic feel.
Blue Sage (Salvia)

Blue sage, or Salvia azurea, is an enchanting wildflower that thrives in Zone 7 and can be planted in August. Admired for its stunning blue spikes, it attracts various pollinators, including hummingbirds and butterflies. It’s drought-tolerant and prefers well-drained soil and full sun, making it an excellent choice for those looking to add a splash of color without excessive watering. Bonus: the aromatic foliage can deter some pests, ensuring a healthier garden.
Conclusion
August may signal the end of summer, but it also heralds a new wave of opportunities for gardening enthusiasts in Zone 7. Whether you’re planting annual flowers to brighten your space immediately or preparing for vibrant perennials and bulbs that will bloom in the spring, the options are plentiful.