10 Heat-Tolerant Annuals for Summer Heat

As summer temperatures soar, it’s important to choose the right plants for your garden that can withstand the heat. Don’t let the sweltering sun put a damper on your green thumb; there are plenty of heat-tolerant annuals that can thrive even in the warmest of conditions. By selecting the right plants, you can enjoy a vibrant and colorful garden all summer long.

In this article, we will explore 10 heat-tolerant annuals perfect for withstanding summer heatwaves. These hardy plants not only survive but also flourish, allowing your garden to maintain its beauty as the mercury rises. So, get your gardening gloves ready and let’s dive into the world of heat-loving annuals that will transform your sun-kissed garden into an oasis of color and life.

10 Heat-Tolerant Annuals

Summer heat can be tough on plants, but fear not! Here is a list of ten heat-tolerant annuals that you can add to your garden to withstand high temperatures. Each of these plants can thrive in sunny, hot conditions, bringing color and life to your garden throughout the season.


Sunflowers (Helianthus annuus) are not only beautiful, but also extremely heat-tolerant. They grow well in full sun and can tolerate dry soil conditions. Just make sure to give them ample space to grow, as they can reach heights of up to 12 feet.


Zinnias come in a variety of stunning colors and are perfect for brightening up your garden. These low-maintenance plants thrive in full sun, and their sturdy stems make them resistant to hot, dry conditions.


Marigolds (Tagetes) are a popular choice for heat-tolerant annuals, offering vibrant shades of orange, yellow, and red. They prefer full sun and well-draining soil. As an added bonus, their strong scent can help deter pests from your garden.


Portulaca, also known as moss rose, is a low-growing, drought-resistant plant that can tolerate heat and full sun. It produces brightly colored flowers and requires little maintenance, making it an excellent choice for borders or rock gardens.


Gomphrena, or globe amaranth, is another heat-tolerant annual that thrives in sunny, dry conditions. Gomphrena produces round, colorful flowers that make a pretty addition to your garden or landscape.


Vinca (Catharanthus roseus) is a low-maintenance, heat-tolerant annual that offers lush green foliage and delicate flowers. It performs well in both full sun and partial shade and is relatively drought-resistant.


Celosia is a unique and eye-catching plant that comes in a variety of striking colors and forms, such as plumes or cockscomb. It thrives in hot, sunny conditions and requires well-draining soil.


Salvia is a heat-tolerant annual that produces stunning spikes of tubular, blue or purple flowers. It grows well in full sun and well-draining soil, and its fragrant foliage may attract pollinators like bees and butterflies to your garden.


Lantana is a colorful, flowering plant that can thrive in hot, sunny conditions. It produces clusters of bright flowers and is virtually maintenance-free, making it an easy addition to any garden.

Mexican Heather

Mexican Heather (Cuphea hyssopifolia) is a small, evergreen shrub that is both heat- and drought-tolerant. It produces masses of small, lavender flowers that can attract beneficial insects to your garden. Plant it in a sunny spot with well-draining soil for best results.