Filler Annuals and Flowers

Filler annuals and flowers are the mounding, colorful workhorses of any container planting. They nestle between your thriller and spiller, filling in gaps with color, texture, and density. That's what gives a container its full, lush, finished look. Because you plant annuals fresh each season, you can experiment with new filler flowers every year. That keeps your container combinations feeling fresh from spring through frost.

The number of filler annuals you need depends on your pot size. A 12-inch pot typically needs one to two plants, while a 14-inch pot looks best with two to three. For an 18-inch pot, plan on three to five plants for full, even coverage. Larger containers of 20 inches or more may need four to six or more plants. That level of coverage gives an oversized pot a truly complete, abundant look.

A vibrant window box filled with red geraniums, Supertunia® Mini Vista® Violet Star Petunia, and white flowers sits against a white-framed window with tall green grasses - Photo Property of Garden Crossings LLC.
Close-up of Rockapulco® Rose Double Impatiens features clusters of bright pink, ruffled blooms and deep green leaves - Photo Courtesy of Proven Winners, Inc.The Rockapulco® Rose Double Impatiens showcases abundant rose-like pink blooms and deep green foliage in a chic rectangular metallic pot - Photo Courtesy of Proven Winners, Inc. Decorative pot not included.

Rockapulco® Rose Double Impatiens

$10.99
$10.99

A vibrant planter displays Rockapulco® Tropical Shades Double Impatiens in pink and coral hues, surrounded by trailing lime-green foliage, nestled among other lush shade garden flowers at a garden center - Photo Property of Garden Crossings LLC. Decorative pot not included.A vibrant garden bed features clusters of pink-red Rockapulco® Tropical Shades Double Impatiens, classic shade garden flowers, nestled among lush green foliage, ferns, and small white blooms, all bordered by stone pavers - Photo Property of Garden Crossings LLC.

Rockapulco® Tropical Shades Double Impatiens

$10.99
$10.99
Close-up of Rockapulco® White Double Impatiens flowers in bloom, featuring green leaves and unopened buds next to open flowers. The delicate, layered white petals give the blossoms a full, textured look - Photo Property of Garden Crossings LLC.A close-up of a single Rockapulco® White Double Impatiens, featuring rose-like white double blooms with soft, layered petals nestled among dark green leaves - Photo Property of Garden Crossings LLC.

Rockapulco® White Double Impatiens

$10.99
$10.99

Rockapulco® Wisteria Double Impatiens features vibrant pink double blooms with white edges amid lush green foliage, offering a colorful display - Photo Property of Garden Crossings LLC.Close-up of Rockapulco® Wisteria Double Impatiens flowers with lush green leaves and buds. These vibrant double blooms have delicate purple veining, adding texture and rich color to shade garden containers - Photo Property of Garden Crossings LLC.

Rockapulco® Wisteria Double Impatiens

$10.99
$10.99

Close-up of a Rollercoaster Hot Pink New Guinea Impatiens features bright pink, overlapping petals and glossy green leaves - Photo Property of Garden Crossings LLC.The Rollercoaster Hot Pink New Guinea Impatiens displays vivid pink blooms with water droplets on lush green leaves - Photo Property of Garden Crossings LLC.

Rollercoaster Hot Pink New Guinea Impatiens

$10.99
$10.99
Two Rollercoaster Red Racer New Guinea Impatiens blooms features bright red, wavy-petaled blooms with glossy green leaves, thriving in sunlight - Photo Property of Garden Crossings LLC.A close-up of vibrant Rollercoaster Red Racer New Guinea Impatiens with red blooms and dark green leaves, set against a white background - Photo Courtesy of Ball Horticulture, Inc. Decorative pot not included.

Rollercoaster Red Racer New Guinea Impatiens

$10.99
$10.99

A close-up of Rollercoaster Tangy Taffy New Guinea Impatiens, featuring vibrant pink ruffled petals and dark green leaves in bright sunlight - Photo Courtesy of Ball Horticulture, Inc.

Rollercoaster Tangy Taffy New Guinea Impatiens

$10.99
$10.99

Rollercoaster Valraven Violet New Guinea Impatiens displays vibrant pink ruffled blooms with dark green, pointed leaves, thriving outdoors in bright sunlight. Mulch and other green foliage appear in the background - Photo Property of Garden Crossings LLC.A cluster of Rollercoaster Valraven Violet New Guinea Impatiens, with ruffled violet blooms and lush dark green leaves, creates a dense, colorful display - Photo Courtesy of Ball Horticulture, Inc.

Rollercoaster Valraven Violet New Guinea Impatiens

$10.99
$10.99
Rollercoaster White Lightning New Guinea Impatiens features semi-double white, ruffled blooms and dark green foliage - Photo Courtesy of Ball Horticulture, Inc. Decorative pot not included.

Rollercoaster White Lightning New Guinea Impatiens

$10.99
$10.99

Safari™ Dawn South African Phlox (Jamesbrittenia) is a heat-tolerant, trailing flower forming dense clusters of vibrant purple blooms with yellow centers - Photo Property of Garden Crossings LLC. Decorative pot not included.A round pot overflowing with Safari™ Dawn South African Phlox—heat-tolerant trailing flowers in pink, orange, and yellow star shapes - Photo Courtesy of Proven Winners, Inc. Decorative pot not included.

Safari® Dawn South African Phlox (Jamesbrittenia)

$10.99
$10.99

A garden scene with vibrant purple Safari™ Dusk™ South African Phlox (Jamesbrittenia), a heat-tolerant trailing plant, nestled among lush foliage and white blooms - Photo Property of Garden Crossings LLC.A cluster of vibrant purple Safari™ Dusk™ South African Phlox (Jamesbrittenia) flowers with yellow and red centers, surrounded by green foliage - Photo Courtesy of Proven Winners, Inc.

Safari® Dusk™ South African Phlox (Jamesbrittenia)

$10.99
$10.99

Safari® Lava Flow South African Phlox (Jamesbrittenia) features vibrant red blooms with yellow centers and green foliage - Photo Courtesy of Proven Winners, Inc.A green ceramic pot displays vibrant red Safari® Lava Flow South African Phlox (Jamesbrittenia) with yellow centers and lush green foliage, set against a white background - Photo Courtesy of Proven Winners, Inc. Decorative pot not included.

Safari® Lava Flow South African Phlox (Jamesbrittenia)

$10.99
$10.99
A close-up shows Safari™ Sky South African Phlox (Jamesbrittenia) with small lavender-purple blooms and yellow centers trailing from a blue planter on a sunny day, with green grass in the background - Photo Property of Garden Crossings LLC. Decorative pot not included.A hanging basket showcases Safari™ Sky South African Phlox (Jamesbrittenia) with vibrant lavender-purple blooms featuring yellow centers and deep green foliage with some larger pink flowers in the center fo the basket - Photo Courtesy of Proven Winners, Inc. Decorative pot not included.

Safari® Sky South African Phlox (Jamesbrittenia)

$10.99
$10.99
Close-up of Shadow Dancer® 'Marcia' Fuchsia with vibrant purple and red petals, long pink stamens, and green leaves in white pots - Photo Property of Garden Crossings LLC. Decorative pot not included.Close-up of Shadow Dancer® 'Marcia' Fuchsia featuring vibrant deep pink petals, purple centers, and delicate stamens, set against lush green foliage - Photo Courtesy of Proven Winners, Inc.

Shadow Dancer® 'Marcia' Fuchsia

$10.99
$10.99

Silvery, lobed Silver Bullet® Wormwood (Artemisia) leaves with a velvety texture make elegant foliage accents among vibrant purple petunias and lush green plants - Photo Property of Garden Crossings LLC.Dense, silvery-gray Silver Bullet® Wormwood (Artemisia) with finely divided leaves forms lush clusters, creating striking foliage accents against bright green grass - Photo Courtesy of Proven Winners, Inc.

Silver Bullet® Wormwood (Artemisia)

$10.99
$10.99

Rose Bacopa features vibrant purple-pink flowers with yellow centers and green leaves, creating a lively and colorful display - Photo Property of Garden Crossings LLC

Snowstorm® Rose Bacopa (Sutera)

$10.99
$10.99
A cluster of small, white blooms with yellow centers and green foliage highlights the delicate beauty of Snowstorm Snow Globe Bacopa - Photo Property of Garden Crossings LLCA cluster of small white blooms with yellow centers and delicate petals, surrounded by green leaves, densely packed together - Photo Courtesy of Proven Winners, Inc.

Snowstorm® Snow Globe® Bacopa (Sutera)

$10.99
$10.99

Close-up of Solenia® Apricot Rieger Begonia, featuring vibrant orange and yellow double blooms with soft petals and green leaves visible in the background - Photo Courtesy of Proven Winners, Inc.A beige ceramic pot holds the Solenia® Apricot Rieger Begonia, displaying lush green leaves and abundant double blooms in yellow and peach shades - Photo Courtesy of Proven Winners, Inc. Decorative pot not included.

Solenia® Apricot Rieger Begonia

$11.99
$11.99

Close-up of vibrant Solenia® Chocolate Orange Rieger Begonia flowers, featuring double blooms with yellow centers, set against lush dark green foliage - Photo Courtesy of Proven Winners, Inc.A beige ceramic pot filled with vibrant Solenia® Chocolate Orange Rieger Begonia, featuring double blooms and dark green, slightly ruffled leaves, set against a white background - Photo Courtesy of Proven Winners, Inc. Decorative pot not included.

Solenia® Chocolate Orange Rieger Begonia

$11.99
$11.99

The Solenia® Scarlet Rieger Begonia features vibrant red double blooms with layered petals, set among green leaves and softly blurred yellow flowers in the background - Photo Property of Garden Crossings LLCSolenia® Scarlet Rieger Begonia features bright scarlet, double blooms with layered petals accented by vibrant green leaves in the background - Photo Courtesy of Proven Winners, Inc.

Solenia® Scarlet Rieger Begonia

$11.99
$11.99
A close-up of a hanging basket featuring Solenia® Yellow Rieger Begonia with vivid yellow blooms and lush green leaves. Blurred trees and parked cars in the sunny background - Photo Property of Garden Crossings LLCClusters of ruffled yellow Solenia® Yellow Rieger Begonia blooms stand out among green foliage and purple plants, creating a striking display that's ideal for hanging baskets in your garden - Photo Property of Garden Crossings LLC

Solenia® Yellow Rieger Begonia

$11.99
$11.99

A close-up of Solera™ Dark Red Zonal Geranium (Pelargonium) blooms with lush green leaves - Photo Courtesy of Ball Horticulure, Inc.A brown pot holds vibrant Solera™ Dark Red Zonal Geranium (Pelargonium) flowers and lush green leaves - Photo Courtesy of Ball Horticulure, Inc. Decorative pot not included.

Solera™ Dark Red Zonal Geranium (Pelargonium)

$11.99
$11.99
Close-up of a lone cluster of vibrant pinkish red blooms, the Solera™ Fuchsia Zonal Geranium (Pelargonium) shine amid lush green leaves - Photo Courtesy of Ball Horticulure, Inc.A tan planter with vibrant pinkish-red blooms of Solera™ Fuchsia Zonal Geranium (Pelargonium) sits on a stone surface outdoors, surrounded by lush greenery and garden flowers - Photo Courtesy of Ball Horticulure, Inc. Decorative pot not included.

Solera™ Fuchsia Zonal Geranium (Pelargonium)

$11.99
$11.99
Close-up of pink Solera™ Lavender Zonal Geranium (Pelargonium) with green rounded leaves and vibrant pink-lavender blooms featuring subtle white streaks - Photo Property of Garden Crossings LLC.A cluster of vibrant pink Solera™ Lavender Zonal Geranium (Pelargonium) flowers with green leaves and buds, patterned gray pots visible in tehe background - Photo Property of Garden Crossings LLC.

Solera™ Lavender Zonal Geranium (Pelargonium)

$11.99
$11.99