10 Heat-Tolerant Flowers That Thrive in Your Sunny Summer Garden
These pretty plants will flourish even in high heat and full sun!
Whether it’s winter frost, summer heatwaves, torrential downpours, or temperature fluctuations, extreme weather can be a massive pain point for gardeners—beginners and experts alike. During the summertime, in particular, stretches of high heat can cause wilted petals, blossom drop, and stunted growth for many types of flowers. Some species, however, actually crave hot, sunny conditions in order to grow healthy and strong. So, when you plant heat-tolerant flowers, you won’t have to worry about battling the elements on scorching summer days.
From heat-loving annuals that bloom until the first frost to sun-soaking perennials that return every summer, these plants will bring beautiful color to any hot, sunny border, bed, or container garden without the stress. Since many of these plants retain moisture, they’re able to survive droughts, and you won’t have to water them as frequently. Plus, they typically resist pests and diseases that emerge in the hotter months, which eliminates the need to battle a pesky gardening issue. Because these heat-tolerant flowers flourish in full sun and hot weather, your yard will look lush and vibrant in peak summer! Read on for are some of the best heat-loving variations to plant.
Enhance your summer garden with more ideas:
Aster
With daisy-like petals that come in rich shades of pink, blue, purple, or white, these hardy perennials are excellent additions to sunny borders and rock gardens. They bloom from late summer to mid-autumn, and pruning them at the halfway point will contribute to fuller growth.
USDA zones: 4 to 8
Growing conditions: Full sun; rich, well-draining soil
Lantana
When temperatures rise and the sun shines, lantanas flourish. Whether you plant them in beds or containers, these heat-loving flowers will reward you with nonstop color from spring to frost. Not only are they drought-tolerant, but they’re also pollinator-friendly and pest-resistant.
USDA zones: 8 to 11
Growing conditions: Full sun; slightly acidic, well-draining soil
Blanket Flower
Heat-tolerant blanket flowers will bring a cheerful pop of yellow, orange, or red to a sunny summer garden. These resilient perennials can easily withstand droughts, and they tend to perform best in poor soil (just make sure it has good drainage).
USDA zones: 3 to 10
Growing conditions: Full sun; well-draining, sandy, or rocky soil
Salvia
These tall, spiky flowers in eye-catching colors have deep root systems and moisture-retaining leaves that help them thrive in the heat. Their nectar-rich flowers attract pollinators, yet their strong scent keeps pests away.
USDA zones: 3 to 10
Growing conditions: full sun; well-draining, sandy, or loamy soil
Sedum
Since sedums are a member of the succulent family, they easily withstand dry spells. These star-shaped flowers bloom from early summer through late fall, and they prefer poor soil and full sun. Add them to rock gardens, easygoing containers, or bright borders.
USDA zones: 3 to 11
Growing conditions: Full sun; gritty, well-draining soil
Zinnia
Whether you grow them in beds or containers, zinnias are heat-loving annuals that’ll bring striking color and texture to your yard. Although they can resist high temperatures, heatwaves above 90 degrees Fahrenheit can stress out the plant, causing wilting and drooping.
USDA zones: 2 to 11
Growing conditions: Full sun; rich, well-draining soil
Coneflower
Even on the hottest summer days, coneflowers will look bright and beautiful. These heat-tolerant flowers are a favorite among pollinators, and their long, pointed petals lend themselves to cottage-style gardens.
USDA zones: 3 to 9
Growing conditions: Full sun; loose, well-draining soil
Yarrow
Yarrows might look soft and feathery, but they’re some of the toughest flowers: They tap into their deep root system during droughts, and they thrive in poor soil. Plant them after the last or before the first frost, and these perennials will return every late spring through early fall.
USDA zones: 3 to 9
Growing conditions: Full sun; well-draining soil
Black-Eyed Susan
Featuring sunny petals and dark centers, Black-Eyed Susans are a summer staple. Although these heat-loving flowers flourish in full sun, they can also tolerate partial shade. Plus, they can adapt to any type of soil: loamy, clay, sandy, or rocky.
USDA zones:
Growing conditions: Full sun; well-draining soil.
Lavender
Known for its scent and pretty purple color, sun-loving lavender will elevate any summer garden. This type of flower will also give pollinators a place to perch. While younger varieties need consistent watering, mature plants are drought-tolerant.
USDA zones: 5 to 9
Growing conditions: Full sun; sandy, well-draining soil
Lilly Blomquist is the associate editor at The Pioneer Woman, where she writes lifestyle stories across a wide range of topics—including news, entertainment, holidays, food, and more.
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