Choosing the right perennial plants for containers ensures an impressive display that returns each summer. These hardy varieties thrive in pots, offering a natural aesthetic that attracts pollinators.
Container gardening allows for creative combinations, and by selecting top perennial plants, you can enjoy vibrant displays without needing to buy new bedding plants every year. Many of these plants can be propagated easily, letting you refresh your arrangements for free.
Utilizing repetition of plants and colors across various pot sizes is a design strategy that gives your container arrangements a cohesive look and a sense of abundance throughout the growing season. Below, we present 16 excellent perennial varieties perfect for container gardens.
Extend the Life of Your Containers with These Perennials
While colorful annuals are tempting, the best perennial plants for pots provide lasting interest and vibrant colors all summer long.
Not having to refresh your planter boxes each spring saves both time and money.
1. Centranthus ruber 'Albus'
- Hardiness: USDA 5-8
- Height: 3ft (90cm)
- Spread: 2ft (60cm)
This white valerian variant adds charm to any planter with its long-flowering season and pollinator-attracting blooms. Its gray-green foliage beautifully contrasts with clusters of white flowers that persist throughout summer.
It's drought-resistant and requires minimal care, needing only occasional deadheading to promote fresh blooms. In fall, cut back spent stems to ground level.
2. Salvia nemorosa 'Caradonna'
- Hardiness: USDA 4-9
- Height: 24in (60cm)
- Spread: 18in (45cm)
This standout cultivar offers a vertical accent and rich color, featuring vibrant purple flowers from summer to fall that attract butterflies and bees.
Its compact growth makes it ideal for pots, thriving in full sun and drought-tolerant combinations, perfect for sunny patios or windowsills.
Order the similar 'East Friesland' Salvia from Nature Hills.
3. Oenothera lindheimerei 'Siskiyou Pink'
- Hardiness: USDA 5-9
- Height: 24in (60cm)
- Spread: 18in (45cm)
This charming late summer perennial, previously named Gaura lindheimerei 'Siskiyou Pink', brings an ethereal touch to informal container displays with its bright pink flowers on dark maroon stems.
Flowering from late spring to early fall, it's drought-tolerant and should be paired with softer grasses or lower plants for optimal display.
Find this Gaura variety at Walmart.
4. Dianthus 'Passion'
- Hardiness: USDA 5-9
- Height: 10in (25cm)
- Spread: 10in (25cm)
Dianthus make a wonderful display in pots, enhancing table settings, windowsills, or balconies. This fragrant variety from the 'Scent First' series is perfect for containers near entrances or patios.
With its brilliant red blooms lasting from late spring to the end of summer, deadheading can extend the flowering season. Drought-hardy and evergreen, this perennial thrives in pots.
5. Agapanthus 'Silver Moon'
- Hardiness: USDA 7-11
- Height: 28in (70cm)
- Spread: 20in (50cm)
This newer agapanthus features strappy, variegated leaves that enhance its appeal. Best displayed solo in a tall container, its sky-blue flowers create a stunning focal point on patios or balconies in full sun.
While it requires dividing and repotting every few years, it's otherwise low-maintenance. Indigo Frost is another agapanthus variety with variegated blooms available from Nature Hills.
6. x Semponium 'Destiny'
- Hardiness: USDA 9-11
- Height: 10in (25cm)
- Spread: 24in (60cm)
This hybrid combines the best traits of hardy sempervivum with dark-leaved aeonium, resulting in an evergreen succulent with substantial maroon leaves.
It looks stunning planted alone in a large bowl-shaped pot with other sunny patio plants. It's winter-hardy in sheltered areas, tolerating temperatures down to 28°F.
7. Hosta (Tardiana Group) 'June'
- Hardiness: USDA 3-9
- Height: 15in (37cm)
- Spread: 28in (70cm)
Hostas are excellent for foliage displays, and 'June' showcases beautiful variegated greens. Ideal in pots, they also safeguard their leaves from slugs and snails.
These shade-loving plants can thrive in sunnier spots to deter pests. Regular feeding promotes lush growth and lovely mauve flowers in midsummer.
8. Salvia 'Royal Bumble'
- Hardiness: USDA 7-10
- Height: 24in (60cm)
- Spread: 15in (40cm)
Adding a bright red hue to containers, this robust plant features small, vivid flowers on dark stems from spring to fall.
Mid-height and easy to maintain, it pairs well with other perennials and adapts to sunny or partially shaded spots. A similar bright red salvia 'Flare' is available from Burpee.
Apply mulch in spring around the base and trim lightly in winter to promote spring growth. Like all salvias, it's also one of the best plants for pollinators.
9. Sedum Sunsparkler series 'Lime Zinger'
- Hardiness: USDA 4-9
- Height: 6in (15cm)
- Spread: 18in (45cm)
The 'Sunsparkler' series thrives in sunny pots, forming dense mats that complement taller plants during summer.
This cultivar's lime green contrasts beautifully with maroon salvias and verbena. Typically, hylotelephium flowers bloom in the late summer, attracting bees.
As a drought-tolerant option, it's easy to care for, preferring full sun but can tolerate light shade. It dies back completely in winter.
10. Verbena officinalis var. grandiflora 'Bampton'
- Hardiness: USDA 4-8
- Height: 3.2ft (1m)
- Spread: 2.4ft (75cm)
This relatively new variety brings airy height to containers, featuring dark stems topped with small bright pink flowers throughout summer.
Verbena is drought-resistant and low-maintenance, thriving in various soils. In spring, cut back summer growth to make way for new shoots and apply mulch in fall for winter protection.
11. Sanguisorba tanna
- Hardiness: USDA 4-8
- Height: 24in (60cm)
- Spread: 18in (45cm)
This burnet features striking dark red pompom flowers and attractive blueish-gray foliage, adding unique texture to larger containers.
Slow-spreading, it thrives in well-watered soil, requiring a good balance of topsoil and compost.
12. Stipa tenuissima
- Hardiness: USDA 7-11
- Height: 24in (60cm)
- Spread: 12in (30cm)
This ornamental grass adds movement and texture to your display. A semi-evergreen, it should be planted in groups for a fuller effect.
Its golden, feathery foliage remains attractive until late summer and needs a light spring cleanup to maintain its appearance.
13. Erigeron karvinskianus
- Hardiness: USDA 6-9
- Height: 12in (30cm)
- Spread: 36in (90cm)
This Mexican fleabane blooms from mid-spring to mid-fall, creating a cascade of daisy-like flowers with pink hues. It's perfect for spilling over containers for a wildflower effect.
Drought-tolerant and adaptable to various soils and part shade, it pairs well with taller plants and attracts bees, making it an excellent pollinator-friendly choice.
Find 2000 Erigeron seeds at Walmart.
14. Astrantia major 'Large White'
- Hardiness: USDA 5-8
- Height: 36in (90cm)
- Spread: 18in (45cm)
Starting to bloom in early summer, this masterwort features white-and-green flowers that are ideal for mid-height arrangements and cutting.
To thrive, it needs a larger pot filled with organic matter and topsoil, while ensuring consistent moisture. Cut back in winter and apply mulch in spring.
15. Geranium 'Dreamland' ('Bremdream')
- Hardiness: USDA 5-9
- Height: 15in (40cm)
- Spread: 15in (40cm)
This hardy geranium features attractive foliage and pale pink flowers that bloom throughout summer, softening container edges beautifully.
It pairs well with taller varieties like astrantia and penstemon. Remember to remove spent flowers for a tidy look; it's easy to grow and will die back completely in winter. A similar 'Boom Chocolatta' geranium from Burpee offers a darker hue.
16. Penstemon 'Hidcote Pink'
- Hardiness: USDA 7-10
- Height: 36in (90cm)
- Spread: 36in (90cm)
This perennial adds vertical interest with its elegant spires of foxglove-like flowers, blooming from summer through fall.
Ideal for full sun to part shade, ensure your container has good drainage. This resilient plant doesn't require extra feeding during summer and is also excellent for attracting hummingbirds.
FAQs
What perennials thrive in containers?
Most perennials can flourish in containers, provided you consider the right plant for the right location, just as you would in a garden border.
Adjust soil types by selecting suitable compost mixes, adding grit for drainage or organic matter to retain moisture based on plant needs.
Can perennials survive winter in pots?
Hardy perennials can withstand cold winters but may need extra protection during severe weather. Apply thick mulch in fall or relocate them to sheltered areas during dormancy.
To guard against frost, insulate pots with hessian cloth or bubble wrap if temperatures drop significantly.
If you're seeking cold-hardy choices, explore the best winter plants for containers to maintain your outdoor displays through the colder months.
Container gardening provides flexibility to reposition plants for optimal growth and allows easy transport if you move. Discover more plants suitable for containers, like growing lavender or hellebores in pots.
