Best Purple Flowering Perennials

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Purple flowering perennials add a touch of elegance and vibrance to any garden, offering unique beauty year after year.

These resilient plants come in various shades and sizes, making them versatile choices for landscaping projects.

Whether you’re aiming for a formal garden or a more naturalistic setting, purple perennials provide a reliable pop of color that complements various garden styles.

Flowering perennials are plants that can live for more than two years, unlike annuals, which only survive for one growing season. These plants bloom during the spring and summer months and typically die back in colder temperatures, only to return in the following spring.

Examples of flowering perennials include lavender, peonies, daisies, and roses.

21 Perennial Flowering Plants with Purple Blooms

Salvia

salvia

Salvia nemorosa is a tolerant plant that grows in different climates but needs well-drained soil. Salvia grows with a four-sided stem with paired leaves on spikes of the tubular. You will see two-lipped purple flowers blooming in summer in full sun to partial shade.

The Salvia grows up to 48 inches tall, giving a garden a serene look.

The Salvia blooms all summer in hot, dry garden beds. The spikes appear skinny and are a member of the mint family. When you keep Salvia deadheaded, she rewards you with blooms for a long time.

The purple perennial flowers are deer-resistant, and many varieties are available in different colors.

Daylily

daylily

You will love the Hemerocallis spp purple flowers, whether a beginner or an expert gardener. The plant originates from Asia and can reach up to five feet tall, standing in full sun to partial shade.

The fact is that these purple perennials are not lilies but do look a bit like them. The blooms in multiple colors stand out in those stunning petals. The Daylily grows fast and is flood and drought-tolerant to thrive in different soil conditions.

While the Daylily prefers direct light, these plants prefer direct sun to partial shade in hotter regions. Still, they do best in fertile, loamy soil that drains well.

Delphinium

Delphinium

Delphiniums of the Ranunculaceae family come in various sizes, from dwarf hybrids to towering six-foot beauties.

These pale purple flowers can be planted in the front, back, or middle of perennial borders and mixed with shades of blue, purple, violet, white, red, and pink. While most varieties are short-lived, blooming from early spring to mid-summer, they add glitz to the garden with late summer to early fall flower displays if old flower stalks are removed.

Delphiniums prefer moist soil and cooler summers, needing staking for support and attracting butterflies to hummingbirds.

Chrysanthemum

Chrysanthemum

The mums are stunning purple flowers that grow vibrant clusters of petals. You find them coloring up most households in the fall and winter. You see the indoor plant available in most stores when in bloom.

Still, you can get more out of this plant with its attractive foliage and flower clusters when you plant them in spring. The plant originates from China and enjoys partial shade to full sun. The Chrysanthemum can grow up to three feet tall, making for excellent filler plants that add color to an autumn garden.

Sedum

sedum

Many gardeners refer to the rich purple Sedum plant as stonecrop as it is a low-maintenance plant. The plant has fleshy green foliage with vibrant dark purple flowers. These are some of the favorite purple perennial flowers to grow as they reach up to 3 feet tall.

The Sedum prefers well-drained soil with little watering and fertilizing. They grow their best in full sun or partial shade. The best part is these gorgeous flowers are drought-tolerant and resilient to disease and pests.

Thalictrum

Thalictrum

The meadow rue thrives in well-drained soil with full sun and afternoon shade and can grow up to 3 feet tall. The flower spikes display clusters of dainty light purple blooms with pale yellow pistils.

Many gardeners mistake the meadow rue for the Columbine flowers with the same downward-facing appearance. Thalictrum foliage can range in shades from blueish-dark green to yellowish-green foliage.

The wispy flowers attract pollinators to the garden and initially grow in marshes. These purple perennial flowers love humus-rich soil but can tolerate well-drained soil. The important thing is to keep the meadow rue soil moist but not wet.

German Bearded Iris

Iris germanica

The Iris germanica you find available in rainbow colors, but the favorite purple perennials in violet remain popular. In addition, you can find other stunning colors, royal purple, and lovely patterns on the petals.

The plant has fuzzy purple flowers in fall, and you can find many hybrids of this species. The plant looks fabulous in a flower bed and attracts pollinators. Furthermore, these perennial plants are deer-resistant.

When the German bearded iris gets full sun, it blooms much compared to partial shade. You can plant the German bearded iris in humus well-drained soil and keep it moist. The plant can tolerate some dry spells; you must divide them every four years as it develops dense foliage.

Another fantastic thing is that this iris is an early spring bloomer that brightens the garden for all to enjoy.

Clustered Bellflower

Campanula glomerata

Campanula glomerata is a showy purple flowering perennial with bell-shaped blooms and a white center. You cannot miss them standing in the garden as the violet-purple flowers shine through. You can grow the clustered Bellflower in groups or with other plants.

The purple flowers attract pollinators to ensure your garden flourishes throughout the year. Another added benefit is that you can grow these purple flowers as ground cover, forming a mat that will not disappoint you.

Alternatively, you can use them as undergrowth for bushes or roses and make for a beautiful cut flower. The purple flowering plant thrives in full sun and partial shade. It reaches 3 feet tall and thrives in loam or chalk-moist soil that drains well.

The flowering season is from late spring to early summer, and it will be a delight in your garden. A helpful tip for more purple flowers to bloom is to deadhead your plant.

Spike Speedwell

Veronica spicata

The Veronica spicata features vibrant purple flowers on a spike and grows dense foliage. The varieties found can grow over three feet tall. You can plant speedwell when the spring soil is warm and growing fast.

The Veronica prefers full sun to partial shade and thrives in well-drained soil. The purple perennial flowers are drought tolerant for a small while. Growing these purple perennials in protected areas from strong winds is best.

It is also deer-resistant, but some varieties are susceptible to powdery mildew. A variety that is not that disease-prone is your Royal Candles. Another fabulous thing is the purple flowers opening from the bottom up.

The tall purple perennials can bloom for weeks when planted in direct sun and need no stakes.

Garden Phlox

Phlox paniculata

The Phlox paniculata or garden phlox is a beautiful variety with blue and light purple flowers. With these purple perennials, you can add some flair to the garden. The dark green foliage stands out anywhere and grows up to three feet tall.

The blooms display like round gloves and bloom from mid-summer to fall. You can deadhead the spent flowers to generate more blooms. When you pinch back the stems in late spring, it helps increase branching.

Windflower

Anemone

Anemone known as a windflower looks fabulous in flower beds, providing a color display throughout the year. Yet, the shades of the blooms vary depending on the time of the year. Hence, you can see bright purple, pink, blue, red, and white flowers.

You find different species, each with a unique root system and structure, and care for them differs. Seeing tall perennial flowers with their bright head will give your garden a lift of color.

The windflower thrives in full sun or partial shade and loves well-drained soil with some compost or organic matter added. Each variety needs different water requirements, but most need regular watering during dry periods.

False Aster

Boltonia

Boltonia, often mistaken for aster flowers, is a distinct species with dainty light purple petals and bright yellow centers.

Its sturdy gray-green foliage and thin stems support abundant blooms from late summer to early fall.

Thriving in wet soil and partial shade, Boltonia spreads quickly without becoming invasive, making it a reliable perennial choice.

Tatarian Aster 

Aster tataricus

Aster tataricus is a tall purple perennial and a magnet for migrating monarchs. It is a late-blooming perennial with clusters of small purple flowers.

The perennial plants can grow up to six feet tall and also attract other pollinators to the garden.

It displays dark green leaves, thrives in full sun, and needs no staking for support.

False Indigo

Baptisia australis

Baptisia australis, or the false indigo, grows in a bushy form with upright purple blooms. The plant is eye-catching with its dainty flowers.

Plant your false indigo in spring after the frost has cleared for optimal growth. While young, these perennials prefer well-drained soil but transition to drier conditions once established.

Ensure they receive full sun to maintain their upright posture, adding a striking touch of purple to your flower beds.

Vervain

Verbena stricta

Native to North America, Verbena stricta resembles lavender with its striking purple flowers. These tall perennials are renowned for their standout blooms, often utilized for their herbal properties.

Thrives in full sun for at least ten hours daily require well-drained, acidic soil, though keeping them evenly moist during their youth is advisable.

Despite their preference for drier conditions, they are considered drought-tolerant once established.

Blazing Star

Liatris spicata

Known as the blazing star, Liatris spicata is a native North American perennial featuring stunning purple flowers.

Its attractive blooms, emerging on spikes adorned with strap-like leaves, are a magnet for bees and butterflies during summer.

Thrives in full sun, this plant grows from a bulb-like structure known as a corm and is prized for its long-lasting cut flowers.

Lavender

Lavender

Lavandula, or lavender, boasts a fragrant aroma and comes in light to dark purple hues with pale green foliage. Resistant to deer, it’s an ideal addition near vegetable gardens.

While flowers and leaves are edible and great for herbal teas, they can be bitter and toxic to pets.

Thriving in full sun and well-drained soil, these early spring bloomers don’t fare well in even light shade.

Russell Blue Lupine

Lupinus

The Lupinus thrives in soil that drains well, and if you have heavy clay in acidic soil, we recommend adjusting it with some coarse sand.

The purple blooms in late spring are on tall spires with dense leaves. Still, the Russel Blue Lupine grows bicolored blooms in blue-purple flowers mixed with white flowers.

You can grow them in full sun to light shade to track pollinators in your garden.

Clematis

Clematis

When you train the purple clematis to grow on a trellis, you get a display of cheery purple blooms with bright yellow centers and green foliage.

The bloom time varies as some are spring bloomers while others are repeat bloomers from mid-summer to fall.

These plants need direct sun, while other varieties prefer partial shade.

Grow them in moist well, drained soil, and they will reach up to 12 feet tall.

Mistflower

mistflower

Conoclinium coelestinum, known as the mistflower, looks like the ageratum. The plant has powder-puff purple flowers but is a late summer bloomer.

The plant prefers full sun to partial shade, filling your garden with fuzzy blooms.

Millenium

Millenium

The Allium Millenium Flowering Onion is animal-resistant with purple flowers and has loads to offer in flower beds. The orb flower clusters last for weeks and attract pollinators.

It prefers full sun and has a compact growth that is easy to care for.

It has a long bloom from early spring to late summer, right through to winter.

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