38 Best Summer Flowers – Beautiful Flowers That Bloom All Summer

Best Summer Flowers: Nothing like a garden overflowing with magnificent flowers. Their enticing aromas and bold hues are the perfect way to celebrate the summer season. But if your garden starts to wane after temperatures get warmer, it’s essential to have a plan to keep your beds in bloom. Scroll down to see more than 30 summer flowers that can tolerate the heat.

These conversation triggers will certainly be the envy of your neighbors. Remember to check the USDA plant hardiness zone before you begin to make sure the flowers of your choice are suitable for your area. You can always experiment to find the best combination for your gardening style and location.

summer flowers
Best Summer Flowers

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Let these delicate flowers add a touch of elegance to your garden. Although they can thrive in a little shade, they do best with lots of suns and well-drained soil.


If you are looking for a statement flower to add to your garden, consider digitalis, which can easily grow up to six feet. They bloom early in the summer and come in a multitude of colors, ranging from pink to white.


Symbol of love and distinction, carnations are known for their bold hues and their impressive range of varieties. Some carnations can reach up to 24 inches, while others vary between 9 and 12 inches.

Hibiscus flowers

You can find these vibrant, trumpet-shaped flowers in a range of color combinations. Known to attract hummingbirds and butterflies, these flowers need tons of water and fertilizer during their bloom.

Oriental lilies

There is no denying the beauty of oriental lilies, which are known for their seductive scent and large flowers. They also require little maintenance and require lots of sun and moist soil.


This popular summer flower needs well-drained soil, a moderate amount of moisture and an abundance of sunlight to thrive. Keep in mind that the wind can damage some tall varieties.


Some varieties of Rudbeckia flowers during the summer months. These cheerful flowers are considered low maintenance, requiring lots of suns and well-drained soil.


When it comes to begonias, you can find over 1,000 different types in a range of colors, shapes and sizes. They like moist soil (rather than wet), humidity, and partial shade.


Also known as amaranth, this flower can grow 18 inches to 6 feet tall in a variety of colors, including red, orange, gold, green and purple. This no-till annual does not tolerate moist soil, shade or good transplanting.

Canna Lily

Try planting these tropical-looking flowers for lush foliage and color later in the season. “Although these flowers do not flower until summer, planting in the spring will give them time to establish and produce intense flowers,” said Missy Henriksen, spokesperson for the National Association of Landscape Professionals. They are annuals in cool regions and perennials in warmer ones, she adds.

Nile Lily

Also called blue lily or African lily, Agapanthus praecox is a flower in full sun or partial shade that thrives in warmer regions, especially in pots. “When it comes to containers and hanging baskets showing signs of stress, the best thing to do is move them to the shade and check for dryness often,” advises Kate Karam, editorial director of Monrovia. “They may need a deep drink at least once or even twice a day.”

Sulfur cosmos

This annual in full sun is available in cheerful shades, including scarlet, orange and yellow. It is easy to grow from seeds in poorer soils and often to sow yourself, which means less work for you next year. Expect the stems to grow 1 to 4 feet tall.

California poppies

Eschscholzia California grows 6 to 15 inches and comes in red, pink, orange, yellow and cream. This perennial plant in full sun grows best if it is directly sown because it does not tolerate transplanting well. It also does not thrive in rich or moist soil. Deadhead periodically for continuous flowering throughout the season.

Gazania hybrids

This beautiful and bright flower grows from 6 to 15 inches and you can find it in vibrant colors like red, pink, bronze, orange and yellow. It is a particularly smart choice for sunny, hot and dry places (i.e. dry beds near the patio).

Creeping Zinnia

Sanvitalia procumbens is another short perennial that grows only 4 to 8 inches tall. You can find it in bright orange or yellow. It can work well in partial shade, but does not tolerate poorly drained soil.


Petunias grow 6 to 24 inches tall and you will find them in almost any color under the sun. Deadhead for continuous flowering throughout the season, but do not plant in very humid areas or frequent rains.

Mexican sunflowers

Tithonia rotundifolia grows from 30 inches to 8 feet tall. Unlike most common sunflowers, its growth is more shrubby and does not tolerate rain or rich soil well. Deadhead periodically for continuous flowering.

Common zinnias

“A traditional plant for pollinator gardens, zinnias are easy to grow and require full sun,” says Henriksen. She recommends using them in borders and container gardens, and using cut flowers for interior decoration. They can grow from 4 inches to 4 feet tall and are available in almost all colors except blue.


If you like pink, choose this showy perennial. The fluffy plumes can reach up to 2 feet tall. As it is a shade lover, try to pair it with hostas or ferns.

Cover flowers

Gaillardia looks like a miniature sunset, passing between yellow, orange, red, and sometimes burgundy. They like light rays, so don’t hide them in the shade.


From late spring to early fall, hydrangeas can steal the show in your garden. Try the Blue Enchantress variety for striking ruby-black stems and large fly-headed flowers, Karam recommends. The border shrub flowers blue in acidic soils and pink in alkaline soils. “The flowers age to a splashed creamy green color,” she adds.

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