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Design Ideas For Perennial Planters In Your Landscape

Design Ideas For Perennial Planters In Your Landscape - Nature Hills Nursery

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Keeping container plants and planters around the porch, patio, and throughout the landscape as an extension of your garden, allows you to expand your yard and explore other opportunities to use a wider variety of plants!

Read on to learn about three design ideas for using Perennial plants in seasonal and year-round planters!

While most gardeners use annuals in their mixed container gardens, which are incredibly fast-growing and showy in their own right, using Perennials in your mixed and single-specimen containers enables you to complement your existing landscape without having to buy new and replant them every year, as you would with annual plants!

Mixed upright planters

Many Perennial plants come in an equally wide range of colors and variety, grow fast, and thrive in containers because of their smaller size. There are many ways to combine them to create a stunning display!

Using a variety of heights, widths, forms, and textures, you will create a gorgeous combination!

Three Components of an Effective Planter

If you are not using a single specimen planting, use these components to create an attractive and unique combination!

There are three main components to an effective planter:

  • A Thriller - the most upright plant
  • A Filler - the plant that fills the space between the thriller and the spiller
  • A Spiller - something that drapes down and spills over the sides

To further fill in and accent your design, you can add:

A fourth element which can be included, and that is a greenery element - a plant that remains green and completes the look. Typically, a groundcover or ornamental grass that adds texture and additional filler.

A fifth element is an accent. This can be a flowering bulb, a contrasting color, or other unexpected pop of interest or texture among the flowers and foliage!

Components of an effective mixed planter infographic

Planting in threes or other odd numbers, evenly spaced and mixed among each other for an orderly fill. More informal plantings can be more haphazardly planted. Planters that will only be viewed on one side, larger plants are situated in the rear, with mid-sized plants in the middle, and spillers and smaller fillers planted in the front.

To first begin your selection, find your Hardiness Zone and how much sun per day your area has available. This will narrow down the many options that are available to you!

Classic Planters

The Classic Planter is a mixture of colors, textures, and bloom times, bringing you unique and fresh colors throughout the growing season. Both formal or informal displays can easily be obtained depending on your style!

Any type of container, tall vase-shaped urns, or cement planter looks fantastic among the garden bed to add height, or as a feature on a front yard berm.

Arrange your thriller in the center, with a ring of mid-sized plants around it, and lower-growing perennials and spillers in alternating patterns around the edges, for a symmetrical presentation and fill in beautifully from all angles.

Full Sun Combos:

Full Sun Mixed planter

This bold combination is great for USDA planting zones 5 through 9 and uses these dramatic plants.

  • Red and black Giant Black Knight Canna as the thriller
  • Spring-flowering Black Gamecock Iris for upright foliage after the flowers fade
  • Deep red and gold Li'L Bang™ Red Elf Coreopsis flowers profusely summer 'til fall
  • Dark pink and maroon Midnight Rose Coral Bells add shockingly bright color
  • Planted alternately with the dark purple and green Black Scallop Ajuga as a spiller

For a more pastel and refreshing combination for USDA zones 5 -9:

  • The peach and green Tropical Sunrise Canna is a fantastic sun-loving tall thriller
  • The frilly PRETTICOATS™ Peach Geum is a bi-color spring flowering accent
  • The peach and burgundy Daring Deception Daylily for strappy flowing foliage
  • The peachy red Peach Crisp Coral Bells can be planted around the edges
  • Alternating with the fine-textured, wispy Dwarf Prairie Dropseed grass

A cold-hardy combo for USDA zones 3 and up:

  • A small trellis-trained Petit Faucon Clematis as a thriller plant
  • Round, hot pink accent blooms of Splendens Sea Thrift as a funky pop of color
  • The lacy, dainty spring flowering Biedermeier Columbine as a more delicate filler
  • A summer-to-autumn accent, use the Bumbleberry Salvia
  • Mixed alternately with the Plum Pudding Coral Bells as a showy spiller!

Pop in some spring-flowering bulbs for early color, Liatris for vertical texture, or Freesia bulbs for some fragrance!

Partial Shade Mixed Container:

Part shade mixed container

Partial sun or part shade locations, areas that have morning sun and afternoon shade, or dappled shade areas beneath a cover or canopy of trees, container plants in this in-between sun location can be tricky!

For hot growing zones between USDA 6 to 9, choose:

  • A tall flowering pink on burgundy foliage Gaudi™ Pink Wand Flower
  • The maroon foliage of the Wild Rose Coral Bells and its airy, showy flowers
  • The strappy, fountain-like leaves and plum blossoms of Little Grapette Daylily
  • Mixed with Blackcurrant Ice Columbine for spring color
  • Then add trailing English Ivy spilling out from beneath all the other foliage.

Cooler climates of zones 4 and up:

  • The showy summer flowering Monet Moment Lobelia becomes a showy thriller
  • Combined with the pink and green Berry Timeless Coral Bells as a flowering filler
  • Winter Glow Bergenia for very early flowers and partially evergreen leaves
  • Blazing Star Kobold Gayfeather as an upright summer texture
  • Use the Dragon's Blood Sedum and its bi-color scalloped foliage and pink blooms to round out the season as flowering spillers!

Are pinks and purples not your thing, and you want something more refined? Try a brilliant white and green mixture by combining:

  • The spring-to-summer flowering Whirlwind Japanese Anemone as a thriller
  • Combined with Snow Lady Shasta Daisy for a mounded summer-flowering accent
  • Planted alternately with Sanguineum Album Geranium as a spiller and filler
  • Tuck in some Spiralis Corkscrew Rush for a funky pop of texture
  • Or Ice Dance Sedge Grass for a flowing, variegated filler and spiller

There are, of course, loads of different color options for many of these perennials!

Full-Shade Planters:

Full shade mixed garden

For covered porches and balconies, or beneath the dense shade of the tree canopy, full shade mixed planters will brighten the gloom beautifully!

For a hot climate mixture, try combining:

  • The dark pink Maggie Daley Astilbe for summer flowers
  • With Moonfleet or another Clematis on a pyramidal trellis as thrillers
  • Raspberry Splash Lungwort for silvery speckled foliage and raspberry flowers
  • A couple of Hummelo Betony brings on the summer - autumn flowering spires
  • The rosy foliage of Lava Lamp Coral Bells
  • Silvery leaves and pinkish blooms of Lamium Purple Dragon as fillers and spillers
  • Then tuck in some Bowles Periwinkle vines trailing down the sides

For a cold-growing zone shade-loving container garden:

  • Mix the thriller greenery of the Royal Fern with
  • The unique fountain-like wavy foliage of chartreuse Curly Fries Hosta
  • Add the two-tone maroon and gold Delta Dawn Coral Bells
  • Red Barrenwort as a flowering spiller and filler

You can further mix in the flowing bright greenery of Dickson's Gold Bellflower and the Pennsylvania Sedge grass for a very fine-textured filler and spiller.

There is tons of potential to substitute and swap out plants for other zones with similar characteristics! Mix in some spring and summer-friendly bulbs to add pops of color throughout the year!

Contemporary Planters

This planter has a bit more of a modern feel to it. Elegant, formal, and usually containing a synchronized color scheme, this classic combination echoes stately brick houses covered in ivy, with lions at the gateway. Using a high-end urn, planter, or pot that is as much a work of art as the plants in it, the Classic Planter is a beautiful presentation!

Great for use on your front porch, with a matched pair of planters on either side of your door, the steps leading to your door, or at the entrance of your drive to let you feel as if you are driving into an estate. Use a pedestal to complete the look!

Try these combinations of Perennials to create your own high-end look for your landscape. By combining tall columnar plants in the back, with a cluster of mounding plants on one side, with a free-flowing spiller on the other, a contemporary planter Feel free to adapt it to your needs with other plants. Use a brightly colored pot to contrast with the flowers and enjoy!

Full Sun Combinations:

Contemporary planter mix

Collectively, these planters will thrive in USDA planting zones 5-9.

For a large planter in the full sun, try:

  • The fragrant blooms of Proven Winners® Pugster Periwinkle® Butterfly Bush
  • With an underplanting of Black Scallop Ajuga as a dramatic dark-foliage spiller
  • Candy Stripe Creeping Phlox as fillers, spillers and early-spring soft pastel color

For a brilliant, high-end display, combine:

  • The Iceberg Rose Tree Form as a fantastic thriller, surrounded by
  • An underplanting of Festival Star Baby's Breath for a mist-like fringe
  • Add a ring of tiny summer-flowering Darling Daisy™ Dwarf Shasta Daisies
  • Tuck in a trailing ring of Thorndale English Ivy around the perimeter

Partial Shade Contemporary Planter:

part shade formal mixed planter

For that in-between area of sun and shade, a dramatic cool-colored cool-season planter stands out with:

  • The Blues Little Bluestem as the primary thriller
  • Surrounded by pretty Twinkle Toes Lungwort or
  • Stairway to Heaven Jacobs Ladder as accents and fillers
  • Then tuck in some bright blue and green mound of Jack Frost Brunnera and/or
  • Blue Mouse Ears Hosta for some dwarf greenery

Or try the pretty lavender and variegated mixture of:

  • Northern Lights Tufted Hairgrass against
  • A columnar lavender-flowering Clematis
  • Tuck in a fragrant Kit Cat Catmint and
  • The purple and silver foliage of Frosted Violet or
  • Silver Scrolls Coral Bells as a spiller

Full Shade Feature Planter:

full shade mixed planter ideas

Bring on the drama in the shade with:

  • The Bottle Rocket Leopard Plant filling most of the container
  • With the vibrant gold and red pop of foliage color of Champagne Coral Bells
  • Jurassic Gold Wood Fern that adds a splash of green, gold, and orange

This green and gold color combo packs an eye-catching punch to the full-shade garden!

For a more soft and soothing shade garden planter, choose the:

  • Cinnamon Fern for a fine-textured soft green foliage thriller
  • With the pretty Lemon Love Coral Bells and its lemony stems and foliage
  • Add heart-shaped foliage and yellow flowers of Frohnleiten Barrenwort as a spiller

Rustic Planters

For more of a rustic, farmhouse vibe, consider planting these plants in a barrel, in wooden box planters, or in a terra cotta pot. Many of these plants thrive in a wide variety of growing zones!

Full Sun Half Whiskey Barrel:

Full sun rustic planter

Fun and orange-coppery sun-loving high-impact perennials really warm up an area! Like:

  • The Orange Impact Dahlia that becomes a tall perennial bulb thriller
  • Looks great paired with the Burgundy Bunny Grass as an upright texture plant
  • Combine with the rusty red Chicago Apache Daylily and
  • A coppery apricot Creme Caramel™ Coreopsis planted in clumps around the edges
  • The rusty orange Caramel Coral Bells is a great coppery orange spiller and filler.

For a more cool and collected informal combination, try using:

  • The Denim 'n Lace Russian Sage as a thriller and filler, surrounded by
  • Early spring flowering Emerald Blue Creeping Phlox as a spiller and filler.
  • Include the late summer to fall flowering Peachies Pick Stokes Aster
  • And silvery soft, fuzzy foliage of Helene Von Stein Lambs Ear as a spiller and filler
  • You can include some Snow Hill Salvia for a vertical pop of long-lasting white into this mixture!

Partial Shade Wooden Planter

Part shade rustic planter

Gain showy partial shade contrasting color using:

  • The Little Suzy Black-Eyed Susan as a mounded thriller
  • Complemented by the equally brilliant yellow of the Buttered Popcorn Daylily
  • Fine-textured, unusual summer/fall plumes of Blonde Ambition Blue Grama Grass
  • The flowing cascade of All Gold Japanese Forest Grass completes the look

For a bright blue presentation, try using:

  • The big and ruffled foliage of Shadowland® Waterslide Hosta as a feature thriller
  • Surrounded by Blue Ice Amsonia and
  • Strappy summer-flowering Amethyst Kiss™ Spiderwort
  • Blue Plumbago Plant for a bright blue pop of color
  • Tuck in some Periwinkle around the edges for more filler and trailing spillers.

Full Shade Balcony Pots:

full shade rustic planter

Fire up the shaded container garden with:

  • The golden and green Autumn Frost Hosta or
  • Stained Glass Hosta with the cascading and
  • The equally gold ribbon-like leaves of Evercolor® Everillo Carex
  • Mix in the lacy foliage chartreuse of Goldheart Bleeding Heart and its pink flowers
  • The hot pink and bright green of Marmalade Coral Bells as spillers and color

For a lacy mixture of flowers and foliage that is ideal for hot growing zones of 5 and up:

  • Airy, lacy white Proven Winners® Chantilly Lace Goatsbeard as a gorgeous thriller
  • Combined with the creamy white early spring plumes of Bridal Veil Astilbe
  • The silvery foliage of Japanese Painted Ferns
  • Add the fine-textured silvery-green blades of Blue Zinger Sedge Grass, or
  • The coarse white and green variegated foliage of the petite Fireworks Hosta.

Mix these perennials with your favorite annuals like Begonia or other shade-garden ephemerals.

Expand Your Garden’s Potential!

Bright mixed planter

When there is no more room in the ground in your yard, grow up! Potting up your plants makes it easy to bring your garden to more areas beyond the landscape, and also move around your potted plants! Simply place them on rolling casters.

Container planting also allows you to try plants not quite hardy enough for your Hardiness Zone in the ground, but you can grow in pots and move into the garage for the winter!

Go big and try tiered planters, tipsy planters, unusual planter options, and stacked raised beds that elevate your container gardens to new heights and layers!

By using perennial plants, you can also divide perennials as they get larger and spread their beauty around further, but also if you want to change your color scheme or theme, you can transplant them into your garden!

Remember to include some non-stop flowering annuals, which is a great way to change up the color combinations!

You can read more about caring for and transplanting Perennials in our Garden Blog, and you can read everything about caring for potted plants, knowing when to repot plants, and protecting them in the winter!

Perennials get bigger and better each year, so your planters will become more and more beautiful over time! Start your own Perennial Container Garden with the help of NatureHills.com today and begin enjoying every area of your outdoor world!

Happy Planting!

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Frequently Asked Questions

Can you grow perennials successfully in containers and pots long-term?

Yes, perennials can thrive in containers long-term and offer a significant advantage over annuals since they do not need to be replaced every year. Many perennial varieties are well-suited to container life due to their compact size, and they come in a wide range of colors, textures, and growth habits to create stunning displays season after season. Start by identifying your USDA Hardiness Zone and the daily sun exposure of your planting location, as these two factors will determine which perennials will perform best in your specific conditions.

How do you keep perennials from getting overcrowded in a planter or garden bed?

Perennials naturally spread over time, so dividing clumps every 2 to 3 years in early spring or fall is the best way to prevent overcrowding and keep plants vigorous. In containers, choose compact or dwarf varieties suited to your hardiness zone and pot size, and refresh the planting each season by removing or transplanting any plants that have outgrown their space. For garden beds, spacing plants according to their mature spread at the time of planting reduces competition before it starts. Divide overcrowded clumps with a sharp spade, replant the healthiest divisions, and share or compost the rest.

What size container do perennials need to have enough room to reach their mature size?

Most perennials perform well in containers that hold at least 12 to 16 inches in diameter and depth, though larger varieties may need containers of 24 inches or more to accommodate their root systems. Choosing a container that is slightly larger than the plant's root ball at purchase gives roots room to expand without leaving so much excess soil that moisture retention becomes a problem. Always check the mature spread and height listed for your specific perennial, as a dwarf ornamental grass has very different needs than a large upright thriller plant. Select a container size based on the mature root spread of your largest plant in the combination, and ensure every container has adequate drainage holes to keep perennials healthy long-term.

How do you arrange perennials in a planter for the most visual impact?

For the most visual impact, arrange perennials using the thriller-filler-spiller method: place your tallest, most upright plant as the focal point, surround it with mid-sized plants that fill the gaps, and finish with trailing varieties that drape over the container's edges. You can enhance the combination further by adding a textural greenery element like an ornamental grass and a fifth accent plant that introduces a contrasting color or unexpected pop of interest. Plant in groups of three or other odd numbers for a naturally balanced look, and for planters viewed from one side, position larger plants at the rear and work down to spillers at the front. Start by identifying your USDA Hardiness Zone and daily sun exposure to narrow your plant selection, then choose varieties that share similar light and water needs for a thriving, low-maintenance display.

Should you use the thriller, filler, spiller approach when designing a perennial planter?

Yes, the thriller, filler, spiller approach is a proven and effective method for designing perennial planters. The thriller is your tallest, most upright plant, the filler bridges the space between elements, and the spiller drapes over the container's edge for a finished, dynamic look. You can also add a fourth greenery element like an ornamental grass for texture, and a fifth accent element such as a flowering bulb for unexpected pops of color and interest. Start by identifying your hardiness zone and available sunlight, then select your perennials accordingly and arrange them in odd-numbered groupings for the most visually appealing result.

What perennial combinations work best together in a sunny planter for season-long color?

For sunny perennial planters with season-long color, combine an upright Thriller like a tall ornamental grass or Salvia, a mounding Filler such as Coreopsis or Dianthus, and a trailing Spiller like Creeping Jenny or Sedum to drape over the edges. Adding a fifth accent element, such as a flowering bulb or a plant with bold contrasting color, keeps the display interesting from spring through fall. Start by identifying your USDA Hardiness Zone and confirming you have at least six hours of direct sun daily, as this will determine which perennials will truly thrive in your specific location. Visit naturehills.com to browse sun-loving perennials by zone and build your thriller, filler, and spiller combination with confidence.

How do you choose perennials for a container or planter that will survive winter in your USDA hardiness zone?

To ensure perennials survive winter in a container, select plants rated at least one to two hardiness zones colder than your own, since roots in containers are far more exposed to freezing temperatures than they would be in the ground. For example, if you garden in Zone 6, choose perennials rated to Zone 4 or 5 for reliable overwintering. Start by identifying your USDA Hardiness Zone and your average daily sun exposure, which will narrow your plant selections considerably. From there, choose perennials that meet both criteria, then plan to insulate containers with burlap or move them to a sheltered location like a garage or shed once temperatures consistently drop below freezing.

How many perennial plants do you need to fill a planter or landscape bed without overcrowding?

The number of perennial plants needed depends on the mature spread of each variety and the size of your container or bed. As a general rule, plant in groups of three or five odd-numbered clusters, spaced according to each plant's mature width to avoid overcrowding as they fill in over time. For a standard planter, a combination of one thriller, one to three fillers, and one spiller is a reliable starting point. Always check the mature spread listed on each plant's tag or product page, and err on the side of spacing slightly wider since perennials will return and expand each season.

How do you design a perennial planter that looks good from spring through fall?

To design a perennial planter that performs from spring through fall, combine plants with staggered bloom times using the thriller-filler-spiller framework, selecting one upright focal plant, mid-sized plants to fill the center, and a trailing variety to cascade over the edges. Enhance the display by adding a fourth greenery element like an ornamental grass for texture, and a fifth accent element such as a flowering bulb for unexpected seasonal interest. Start by identifying your USDA Hardiness Zone and daily sun exposure to narrow your plant choices, then select perennials in a range of colors, forms, and heights that complement each other across multiple seasons. Plant in groupings of three or five, evenly spaced, with taller plants at the rear and spillers at the front for planters viewed from one side.

Can you mix perennials with annuals or shrubs in the same planter for better results?

Yes, mixing perennials with annuals and shrubs in the same planter is a great strategy for maximizing seasonal interest and visual impact. Annuals like petunias or marigolds fill gaps quickly and provide continuous color while your perennials establish themselves, and compact shrubs can serve as a reliable thriller element that returns year after year. Use the thriller, filler, and spiller framework to guide your plant selection, placing taller shrubs or upright perennials at the center or rear, mid-sized fillers in between, and trailing annuals or perennials at the edges to spill over the sides. Start by confirming all your chosen plants share the same sunlight and watering requirements, then layer in annuals each season to keep the display looking fresh around your perennial and shrub anchors.