15 Purple Perennial Flowers

Beautiful purple perennials in shades of lilac, violet, mauve and deep purple

If you love purple, there are many different perennials you can plant in your garden for masses of purple colored flowers.

In this article I’ve put together a list of the most popular purple perennial flowers that are easy to grow and will attract butterflies, bees, and other beneficial insects to your yard.

This post contains affiliate links. Please read the disclosure for more info.

Purple allium

If you’re just getting started with perennials, check out these 10 Easy To Grow Perennial Flowers. They’re beautiful, low maintenance flowers that will look great in your garden for many years to come.

15 Purple Perennial Flowers

1. Lavender (Lavendula)


is a popular perennial and is available in many different varieties.

It has grayish silver evergreen leaves and highly fragrant purple flowers.

Lavender is deer-resistant and grows well in full sun and well-drained soil.

It flowers from late spring through to late summer.


2. African Lily (Agapanthus)

Agapanthus is a clumping perennial that produces white and bluish-purple flowers.

It grows best in full sun in cooler climates and part shade in warmer climates.

Agapanthus can be divided every two to three years in early spring, after the plants have flowered.


3. Bellflower (Campanula)

Bellflowers are easy to grow perennials with beautiful blue or purple flowers.

They bloom best in cool-summer areas and depending on the species, they can range from creeping groundcovers to tall plants.

Tall growing Bellflowers may need support to prevent wind damage.

Bellflowers can be propagated by division or cuttings.


4. Iris (Iris germanica)

There are many different varieties of Iris including German bearded Iris and dwarf varieties.

They come in a variety of colors, including violet and deep purple.

Irises are hardy perennials that thrive in full to partial sun and bloom from early spring.

They’re deer-resistant, frost tolerant and can reach 2 – 3 feet (60 – 90 centimetres) in height. [1]

Irises can be divided after flowering. The center section can be discarded and the outer sections replanted.

Purple iris

5. Delphinium

Delphinium is a summer blooming perennial that can grow 3 – 4 feet (90 – 120 centimetres) tall.

It grows best in full sun, sheltered from strong wind and attracts butterflies and hummingbirds to the garden.

Delphinium can be grown from seed, cuttings or division.

RELATED: How To Grow Delphiniums


6. Millenium Flowering Onion (Allium Millenium)

The Millenium Flowering Onion is an easy to grow perennial that has grass-like green foliage and rich purple orb-shaped blooms.

They flower in mid-summer and can grow from 15 – 22 inches (38 – 56 centimetres) in height.

Allium millenium

7. Echinacea (Echinacea purpurea)

Echinacea, also known as Purple Coneflower is an easy to grow perennial that requires very little maintenance.

Depending on the variety, Echinacea can grow as high as 5 feet (1.5 metres) but it has a strong stem, so it won’t require staking.

Echinacea blooms from summer to early fall and regular deadheading can promote further flowering.

It grows well in a sunny location and is mostly free of pests and diseases.

RELATED: How To Grow Echinacea

Grow Echinacea

8. Aster

Aster is a summer-blooming perennial with flowers in shades of pink, purple and blue.

They bloom in clusters and grow 2 – 3 feet (60 – 90 centimetres) high.

Aster can be divided every two to three years. The outer sections can be replanted and the centre parts discarded.

RELATED: 10 Purple Flowering Shrubs


9. Chrysanthemum

Chrysanthemums are available in hundreds of varieties and many different colors including white, pink, orange, red and purple.

They bloom from late summer to late fall and can be cut back after flowering.

Chrysanthemums prefer full sun, especially morning sun to dry the dew and prevent mildew.

They can grow 1-3 feet (30 – 90 centimetres) tall and 2 – 3 feet wide.


10. Foxglove (Digitalis purpurea)

Foxglove is a tall perennial that has tubular shaped flowers along the stem.

As well as purple, they also come in shades of yellow, white, pink and red.

Foxglove will grow in full sun or partial shade, but in very hot areas they will need shade from the afternoon sun.

They will grow in most soil types as long as it is well drained – they’re susceptible to rot in constantly wet soil.

Foxglove are prolific self seeders – removing the dead spikes can prevent unwanted plants growing in your garden.


11. Vervain (Verbena officinalis)

Vervain is a tall perennial with spiky purple flowers.

It blooms from mid-summer to early fall and can reach 4 – 5 feet (1.2 – 1.5 metres) in height.

Vervain grows best in a sunny position and is easy to grow from seed.

It’s frost tolerant and deer resistant.


12. Helleborus

Helleborus is a beautiful flowering perennial that blooms from winter to spring, with the blooms lasting for months.

The flowers come in a wide variety of colors including many shades of purple.

They’re ideal for shady spots including underneath trees or along the side of the house.

Helleborus are suited to cold climates and grow best in soil that has plenty of compost mixed into it.

Aphids can be a problem for Helleborus and slugs and snails can attack new plants.


13. Wisteria

Wisteria is a climbing perennial with lilac or light purple flowers that is perfect for growing on top of a pergola or archway.

They grow very fast and can reach up to 25 – 30 feet (7 – 9 metres) in length.

Wisteria prefers to grow in full sun and they’re best planted away from your house and other plants because they can become invasive.


14. Phlox

Phlox is a beautiful purple perennial that grows 2 – 3 feet (60 – 90 centimetres) tall, with round clusters of blooms.

Phlox grows best in areas with full sun and blooms from mid-summer through to fall.

Regular deadheading will encourage more blooms, and the stems can be cut back by a third in late spring to increase branching.

They’re frost tolerant and will attract bees, butterflies and hummingbirds to your garden.

Phlox can be divided in fall or spring and the outer portions replanted.


15. Hydrangea (Hydrangea macrophylla)

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

Acidic soils with a pH of less than 5.5 produce blue flowers and soils with a pH higher than 5.5 produce pink flowers. White flowers are not affected by pH.

They prefer to grow in a position with morning sun and afternoon shade.

Hydrangeas also make beautiful pot plants.


These gorgeous perennial flowers would be excellent additions to your garden.

Check out this video for some more beautiful purple flowers to plant in your garden.


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

Are you on Pinterest? I have boards dedicated to Flower Gardening and Gardening Tips that you may enjoy. You can also find me on Facebook.

Purple perennial flowers

Purple perennial flowers

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 16 Comments

  1. Stacie

    This makes me want to go out and buy a bouquet of flowers. I’m a big fan of lovely blooms, and all of these picks are just so gorgeous.

  2. OMG – as someone who loves purple as well as someone who loves nature – this has just been the perfect post for me! Oddly, I have never been that great in the garden but this gives me the inspiration to give it a go and get some of these fabulous plants featuring at my place!

  3. Kristine Nicole Alessandra

    Beautiful flowers! I have hydrangeas and I just started a seedling bed of chrysanthemums and asters. I hope they grow big and strong! I will look for some of that Millenium Flowering Onion! They are lovely!

  4. Melanie williams

    I do love florals for sure. these look like beautiful plants and pretty in colour too xx

  5. Terri Steffes

    I love purple in the garden. I love coneflowers and clematis. I’m sharing your post with my garden club!

  6. Bill Sweeney

    Lavender is one of my wife’s favorite perennials. There are a few others on this list as well. She loves to have a mix of colors when they bloom.

  7. Emily Fata

    Though I absolutely adore having lavender growing in my garden, I love the way that the Allium Millenium looks! It’s like something out of a Dr. Suess book, isn’t it?

  8. Emman Damian

    I love Bellflower (Campanula) and Iris. It looks so nice! It’s also fragrant!

  9. Subhashish Roy

    It’s such a beautiful collection of purple flowers. Just love it. A purple flower has always given me immense happiness, I really don’t know why. But it does. Just reading your post made me refreshed.

  10. Carolyn

    I love perennial flowers! Lavender is definitely my favorite but I can never keep it alive for very long! I also have hydrangeas and phlox.

  11. Steph Social

    I love purple flowers! They really brighten up the garden! These are beautiful perennials!

  12. Tiffany La Forge-Grau

    I would love to plant some of these around the house. They are so pretty and very low maintenance.

  13. Ray

    I absolutely love flowers. I was recently in Slovenia, where wildflowers seem to grow just about everywhere, and couldn’t help but running into the meadows and lying down with them. Keen to read your next posts!

  14. Lyanna Soria

    All of those flowers listed above are absolutely beautiful. Imagine seeing your garden full of those pretty flowers. I like Delphinium and Wisteria flowers a lot.

  15. katrina Kroeplin

    Those plants are beautiful. I would love a garden one day!

Leave a Reply