12 Summer Blooming Perennial Flowers

If you’re looking for beautiful summer flowering perennials to plant in your garden, you’re sure to find some great options on this list.

Most of these flowers will bloom from spring until fall so you can be assured that your garden will be full of color during summer.

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1. Lavender (Lavendula)

Lavender is an easy care, summer blooming perennial that is available in many different varieties including English Lavender and French Lavender.

It grows best in full sun with well-drained soil and blooms from late spring until late summer.

The highly fragrant purple flowers can be dried and used to make flower arrangements, herbal tea or scented sachets.

herbs with flowers

2. Millenium Flowering Onion (Allium Millenium)

Alliums are tall perennials with stunning sphere-shaped flower heads.

They grow from bulbs, which should be planted in fall for beautiful summer flowers.

Alliums need full sun and they’re drought tolerant so you can let the soil dry out a bit in between waterings.

They’re most commonly purple in color but you can also find pink and white varieties.

summer flowering perennial

3. Black-Eyed Susan (Rudbeckia hirta)

Black-Eyed Susans are beautiful, bright summer blooming perennials that can reach 3 feet (90 cm) tall.

The flowers are yellow with black centers and they’re like a magnet for bees, butterflies and other beneficial insects.

Black-Eyed Susans should be deadheaded regularly to prolong the bloom time and they need to be divided every few years.

Yellow perennial flowers

4. Echinacea (Echinacea purpurea)

Echinacea, also called Purple Coneflower is a low maintenance perennial that is perfect for beginner gardeners.

Some varieties can grow up to 5 feet (1.5 metres) tall and they have a strong stem, so they don’t need to be staked.

Echinacea grows best in full sun and blooms from summer to early fall.

Regularly removing the spent flowers can prolong the flowering time.

RELATED: How To Grow Echinacea

perennial flowers

5. Shasta Daisy (Leucanthemum x superbum)

Shasta daisies are short-lived perennials, which means they only live for a few years.

They form clumps and produce an abundance of white flowers with yellow centers.

Shasta daisies grow best in full sun and bloom from spring until fall, so you’ll have plenty of flowers during the summer months.

summer flowers

6. Hydrangea (Hydrangea macrophylla)

Hydrangeas are beautiful perennial shrubs with flowers in a variety of colors including pink, purple, blue and white.

They grow best in a spot with morning sun and afternoon shade.

Look for Endless Summer Hydrangeas that have a long bloom time.


7. Aster

Aster is another beautiful summer blooming perennial with flowers in a variety of shades including purple, pink and blue.

They grow 2 to 3 feet (60 to 90 centimetres) tall and look spectacular in the garden.

Asters grow best in areas with cool summer temperatures but they can also be grown in warm climates in a position with afternoon shade.

Pink Aster Flowers

8. Bleeding Hearts (Dicentra spectabilis)

Bleeding Hearts are beautiful perennials that are perfect for shady spots.

They bloom from summer to fall but they may take a couple of seasons to flower after planting.

Their gorgeous heart shaped flowers can be red, pink or white.

RELATED: How To Grow Bleeding Heart Flowers

bleeding heart flowers

9. Canna Lily (Canna indica)

Canna lilies are low maintenance perennials that can be planted in full sun or part shade.

They grow from underground rhizomes and the flowers can be orange, yellow or red.

Canna lilies are best suited to warm climates but they can be grown as annuals in cool climates.

canna lily

10. Yarrow (Achillea millefolium)

Yarrow is a low maintenance, drought tolerant perennial.

It has tightly-packed flower heads that can be yellow, pink, red or white.

Yarrow is frost tolerant, pest resistant and grows best in a spot with full sun.

yarrow flowers

11. Hibiscus

Hibiscus, also known as Rose Mallow, has beautiful large flowers that can be up to 6 inches (15 cm) in diameter.

The flowers come in a range of colors including red, pink, purple and white.

Hibiscus grows best in full sun and prefers humid, tropical climates.

Hibiscus flower

12. Dahlia

Dahlias are spectacular summer flowering perennials that really stand out in a flower garden.

There are many different sizes, shapes and colors to choose from, so you’re sure to find one that suits your garden.

Some Dahlia varieties can grow 5 to 6.5 feet (1.5 to 2 m) tall. [1]

Dahlias can be grown from tubers or seeds and need at least 6 hours of sunlight each day.

Dahlia flower

So there are 12 beautiful summer blooming perennial flowers.

Planting a few of these perennials will ensure that your garden will be filled with color over the summer months.


Which of these summer flowering perennials do you like best? Let me know in the comments below.

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Kelly Martin

Hi, I'm Kelly Martin, a landscape gardener and designer with over 10 years experience. I have a passion for small space gardening and I love designing and creating beautiful outdoor spaces that maximize the potential of small urban gardens. Read more

This Post Has 6 Comments

  1. Carol Richardson

    These perennial flowers are all so pretty. I love all of them! What is the purple flower in the first picture?

    1. Kelly Martin

      Hi Carol, thank you. Yes there’s some beautiful perennials for summer blooms. The flowers in the first picture are Asters.

  2. Doris Jean

    These flowers are so beautiful. The Shasta daisy is so gorgeous and my favorite from the bunch! My mom loves planting and I will share this article with her.

  3. Britt K

    There is some great info here for those of us that want to do more with our flower gardens but don’t know where to start lol A friend recently offered us Black-Eyed Susans for our front garden as she is dividing hers. After reading this, I think they are a great option!

  4. Erica (The Prepping Wife)

    I have always had a special place in my heart for hydrangeas. They come in such beautiful colors. Definitely on my list of plants to have when I find my forever home!

  5. Debra Roberts

    I think I have every one of these out in my gardens! Lavender is by far, my favorite! I wish the Bleeding Hearts would last all season in bloom, they are so delicate! I love making bouquets and use hosta leaves in all my garden arrangements!

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