Filler plants are the bridge between the thrillers (tall, attention-grabbing plants) and the spillers (trailing plants that spill over the edges of the container). They serve as the backbone of your arrangement, filling the space between the focal point plants and the edge of the pot. These plants are typically medium in height and have a bushy or mounding growth habit, helping to provide a well-rounded and visually pleasing structure to your container garden.
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Sedum palmeri 'Mendoza'
Item #: 5727
Zones: 7b to 10b, at least
Dormancy: Evergreen
Height: 8" tall
Culture: Sun to Part Sun
Origin: Mexico
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $22.00Regular priceUnit price per -
Selaginella apoda
Item #: 7655
Zones: 5a to 9b, guessing
Dormancy: Evergreen
Height: 2" tall
Culture: Sun to Part Sun
Origin: United States
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $22.00Regular priceUnit price per -
Selaginella braunii
Item #: 1506
Zones: 6a to 9b
Dormancy: Evergreen
Height: 18" tall
Culture: Part Sun to Shade
Origin: China
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $23.00Regular priceUnit price per -
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Selaginella moellendorffii
Item #: 3228
Zones: 7a to 10b
Dormancy: Evergreen
Height: 5" tall
Culture: Part Sun to Shade
Origin: Asia
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $22.00Regular priceUnit price perNext crop available: 06/21/2024Sold out -
Selaginella tamariscina 'Beni Kujaku'
Item #: 9353
Zones: 7b to 10b, at least
Dormancy: Evergreen
Height: 4" tall
Culture: Part Sun to Light Shade
Origin: Japan, Philippines, Taiwan
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $28.00Regular priceUnit price per -
Selaginella uncinata
Item #: 1451
Zones: 6a to 10b
Dormancy: Evergreen
Height: 6" tall
Culture: Part Sun to Light Shade
Origin: China
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $23.00Regular priceUnit price per -
Seseli gummiferum
Item #: 3117
Zones: 5a to 9b
Dormancy: Winter
Height: 30" tall
Culture: Sun
Origin: Crete, Greece, Turkey
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $20.00Regular priceUnit price per -
Silene ovata
Item #: 3147
Zones: 5a to 8b
Dormancy: Winter
Height: 36" tall
Culture: Part Sun to Light Shade
Origin: United States
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $23.00Regular priceUnit price per -
Sinningia 'Bananas Foster'
Item #: 8527
Zones: 7b to 10b
Dormancy: Winter
Height: 24" tall
Culture: Sun to Part Sun
Origin: Hybrid
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $22.00Regular priceUnit price per -
Sinningia tubiflora
Item #: 4688
Zones: 7b to 10b, at least
Dormancy: Winter
Height: 20" tall
Culture: Sun to Part Sun
Origin: Argentina, Paraguay, Uruguay
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $22.00Regular priceUnit price per -
Sisyrinchium angustifolium 'Lucerne'
Item #: 4782
Zones: 5a to 7b
Dormancy: Evergreen
Height: 8" tall
Culture: Sun to Part Sun
Origin: United States
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $20.00Regular priceUnit price per -
Sisyrinchium nashii 'Suwannee'
Item #: 4789
Zones: 6a to 9b
Dormancy: Evergreen
Height: 8" tall
Culture: Sun to Light Shade
Origin: United States
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $21.00Regular priceUnit price per -
Solidago sphacelata 'Golden Fleece'
Item #: 734
Zones: 4a to 9b
Dormancy: Winter
Height: 20" tall
Culture: Sun to Part Sun
Origin: United States
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $21.00Regular priceUnit price per -
Spigelia marilandica 'Little Redhead'
Item #: 6866
Zones: 5b to 9b
Dormancy: Winter
Height: 21" tall
Culture: Sun to Light Shade
Origin: United States
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $28.00Regular priceUnit price perNext crop available: 06/21/2024Sold out -
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Spiranthes bightensis 'Chadds Ford'
Item #: 9235
Zones: 5a to 9b, at least
Dormancy: Evergreen
Height: 18" tall
Culture: Sun to Part Sun
Origin: United States
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $29.00Regular priceUnit price perNext crop available: 08/02/2024Sold out -
Spiranthes vernalis 'Wake Up'
Item #: 16643
Zones: 5a to 9b, at least
Dormancy: Winter, Summer, Fall
Height: 18" tall
Culture: Sun to Part Sun
Origin: United States
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $28.00Regular priceUnit price per -
Sprekelia formosissima
Item #: 5279
Zones: 7b to 10b, at least
Dormancy: Winter
Height: 12" tall
Culture: Sun to Part Sun
Origin: Mexico
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $22.00Regular priceUnit price per -
Stellaria pubera 'Chick-a-boom'
Item #: 16629
Zones: 6a to 9a, at least
Dormancy: Evergreen
Height: 6" tall
Culture: Part Sun to Light Shade
Origin: United States
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $22.00Regular priceUnit price per -
Stokesia laevis 'Honeysong Purple'
Item #: 4336
Zones: 5a to 9b
Dormancy: Evergreen
Height: 12" tall
Culture: Sun to Part Sun
Origin: United States
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $21.00Regular priceUnit price per -
Stokesia laevis 'Mary Gregory'
Item #: 1404
Zones: 5a to 9b
Dormancy: Evergreen
Height: 12" tall
Culture: Sun to Light Shade
Origin: United States
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $21.00Regular priceUnit price per -
Stokesia laevis 'Peachie's Pick'
Item #: 4726
Zones: 5a to 9b
Dormancy: Evergreen
Height: 24" tall
Culture: Sun to Part Sun
Origin: United States
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $21.00Regular priceUnit price per -
Symphyotrichum novae-angliae 'Purple Dome'
Item #: 953
Zones: 3a to 7b
Dormancy: Winter
Height: 18" tall
Culture: Sun to Part Sun
Origin: United States
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $21.00Regular priceUnit price per -
Sold out
Syneilesis aconitifolia
Item #: 3400
Zones: 3a to 8b, at least
Dormancy: Winter
Height: 18" tall
Culture: Part Sun to Light Shade
Origin: China, Japan, Korea
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $26.00Regular priceUnit price perNext crop available: 06/28/2024Sold out -
Sold out
Syneilesis palmata
Item #: 5617
Zones: 4a to 8b, at least
Dormancy: Winter
Height: 15" tall
Culture: Part Sun to Light Shade
Origin: Japan, Korea
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $25.00Regular priceUnit price perNext crop available: 04/18/2025Sold out
More Information About Fillers
Like the name says, filler plants are there to fill up space in a container garden. The term "filler" does not do these plants justice though. It would be better to call filler plants "accessories" or "accents" or "visual cement" but unfortunately none of these words rhymes with thriller and spiller and the focus groups did not like the alternative marketing term "presenters-cementers-descenters". Like any accent or accessory, filler plants for container gardening support the main theme of the container garden and highlight the main decorative element, the "thriller".
Container gardening is a versatile and delightful way to bring a touch of greenery and beauty to any space, no matter how limited. While the spotlight often shines on show-stopping thriller plants and cascading spiller plants, it's the unsung heroes known as filler plants that bring harmony and cohesion to your container arrangements. These unassuming plants play a crucial role in creating lush, well-balanced compositions that captivate the eye and elevate your outdoor or indoor spaces.
Choosing the Right Filler Plants
When selecting filler plants for your container garden, consider factors like color, texture, growth habit, and the specific growing conditions of your chosen location. Here are a few excellent choices for filler plants:
Salvia - With its vibrant spikes of flowers in hues of blue, purple, red, or white, salvia is a reliable filler plant that attracts pollinators and adds a pop of color to your containers.
Monarda (Bee Balm) - Known for its unique tubular flowers and aromatic foliage, Monarda adds both color and fragrance to your container arrangement, attracting pollinators along the way.
Lantana - With clusters of small, brightly colored flowers, lantana provides long-lasting blooms and attracts butterflies, making it an excellent choice for a filler plant.
Heuchera (Coral Bells) - These plants offer a range of foliage colors, from deep purples to vibrant greens, and they thrive in both sun and shade, adding versatility to your container garden.
Hosta - With their elegant and broad leaves, hostas are great filler plants that bring a lush and textured look to your containers, especially in shade or part-shade conditions.
Cyrtomium (Holly Fern) - If you're looking for a filler plant with interesting foliage, the holly fern's glossy fronds add a touch of evergreen elegance to your container garden.
Tips for Using Filler Plants Effectively
- Balance and Proportion: Aim for a balanced composition by choosing filler plants that complement the size and shape of your thriller and spiller plants.
- Color Harmony: Select filler plants that harmonize with the color scheme of your container garden. Contrasting or complementary colors can create captivating visual effects.
- Height Variation: Opt for filler plants with varying heights to add depth and dimension to your arrangement. This will prevent your container from appearing flat and monotonous.
- Maintenance: Consider the maintenance needs of your filler plants. Choose plants that have similar care requirements to ensure your container garden thrives.
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Regular Pruning: Filler plants can become leggy over time. Regularly trim and deadhead to maintain their shape and encourage healthy growth.
Check out all our blog posts on plants for containers.