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 small, oval peppers in shades of yellow, orange, and red grow among green leaves, showing various stages of ripeness. The Hot Pops Yellow' Ornamental Peppers (Capsicum) are densely packed and have a glossy appearance - Photo Courtesy of Ball Horticulure, Inc.Clusters of small, oval peppers in shades of yellow, orange, and red grow among green leaves, showing various stages of ripeness. The peppers of the Hot Pops Yellow' Ornamental Pepper (Capsicum) are densely packed and have a glossy appearance - Photo Courtesy of Ball Horticulure, Inc. Decorative pot not included.

'Hot Pops Purple' Ornamental Pepper (Capsicum)

$14.99
$14.99
Variegata' Variegated Swedish Ivy (Plectranthus) features green leaves with white edges, creating a striking ground cover amidst bright yellow and deep purple flowers in a vibrant garden setting - Photo Property of Garden Crossings LLC.A bush of 'Variegata' Variegated Swedish Ivy (Plectranthus) with green and white-edged leaves, encircled by yellow and blue flowers, set amid lush ground cover and other greenery in a garden - Photo Property of Garden Crossings LLC.

'Variegata' Variegated Swedish Ivy (Plectranthus)

$10.99
$10.99
A silvery Angel Wings Sea Cabbage (Senecio) with pale green broad leaves is framed by bright pink and small white flowers in a sunlit garden bed with lush green foliage in the background - Photo Property of Garden Crossings LLC.Velvety, silvery-white leaves of Angel Wings Sea Cabbage (Senecio), a drought-tolerant plant, stand out among small green leaves and pink flower clusters in the garden - Photo Property of Garden Crossings LLC.

Angel Wings Sea Cabbage (Senecio)

$16.99
$16.99

A lush Angelface® Cascade Pink Summer Snapdragon (Angelonia) bush shows vibrant pink blooms and green leaves in a garden, with white-flowered bushes and hanging summer snapdragon baskets partly seen on the left - Photo Property of Garden Crossings LLC.A cluster of Angelface® Cascade Pink Summer Snapdragon (Angelonia) blooms densely outdoors, showcasing vibrant pink petals and lush green foliage - Photo Courtesy of Proven Winners, Inc.

Angelface® Cascade Pink Summer Snapdragon (Angelonia)

$10.99
$10.99
Close-up of blooming Angelface® Cascade Snow Summer Snapdragon (Angelonia) with green leaves and buds - Photo Courtesy of Proven Winners, Inc.White blooms of Angelface® Cascade Snow Summer Snapdragon (Angelonia) cover green stems with narrow leaves, standing out in the garden. Sunlight enhances their delicate look - Photo Property of Garden Crossings LLC.

Angelface® Cascade Snow Summer Snapdragon (Angelonia)

$10.99
$10.99

CLose-up of dense clusters of Aromagica™ Purple Heliotrope (Heliotropium) featuring fragrant purple blooms with yellow centers and dense green leaves - Photo Courtesy of Proven Winners, Inc.Aromagica™ Purple Heliotrope (Heliotropium) features fragrant purple blooms above dense green foliage, creating a vibrant display against a white background - Photo Courtesy of Proven Winners, Inc.

Aromagica® Purple Heliotrope (Heliotropium)

$10.99
$10.99

Aromance® Mulberry™ Nemesia displays vibrant pink and purple blooms with yellow centers among green foliage, paired with orange daisy-like flowers and dark purple accents - Photo Property of Garden Crossings LLC.Aromance® Mulberry™ Nemesia is a fragrant annual with clusters of small purple and magenta flowers with yellow centers amid green foliage - Photo Property of Garden Crossings LLC.

Aromance® Mulberry™ Nemesia

$10.99
$10.99

Close-up of Aromance® Pink Nemesia displays clusters of delicate pink, white, and yellow flowers on green stems - Photo Property of Garden Crossings LLC.Close-up of Aromance® Pink Nemesia clusters with pale pink blooms and PW Proven Winners tags, set outdoors on a sunny day amid greenery and blurred hanging baskets - Photo Property of Garden Crossings LLC.

Aromance® Pink Nemesia

$10.99
$10.99

Artist® Blue Flossflower (Ageratum) fluffy fringed petals, grows among green leaves and ferns in a wooden planter box - Photo Property of Garden Crossings LLCA dense cluster of vibrant, deer-resistant Artist® Blue Flossflower (Ageratum) with purple-blue flowers and green leaves grows in a garden bed mulched and bordered by pink and white blooms - Photo Property of Garden Crossings LLC

Artist® Blue Flossflower (Ageratum)

$10.99
$10.99

Clusters of small, pale purple flowers with yellow centers and lush green leaves make Augusta® Lavender Heliotrope (Heliotropium) a beautiful flowering plant - Photo Property of Garden Crossings LLC.Small purple Augusta® Lavender Heliotrope (Heliotropium) flowers, white blooms, and green leaves fill the foreground, with dark purple foliage and red summer flowers blurred in the sunlit background - Photo Property of Garden Crossings LLC.

Augusta® Lavender Heliotrope (Heliotropium)

$10.99
$10.99

The Baby Blue Bouquet Eucalyptus features round blue-green leaves on slender stems, growing in a pot outdoors with wood chip mulch and partial sunlight - Photo Property of Garden Crossings LLC.A Baby Blue Bouquet Eucalyptus plant with blue-green foliage sits potted on a stone, surrounded by wood chips in the sun, highlighting its fragrant beauty - Photo Property of Garden Crossings LLC.

Baby Blue Bouquet Eucalyptus

$11.99
$11.99
A cluster of Beth's Blue® Star Flower (Isotoma) displays blue, star-shaped blooms with narrow petals and green foliage. These heat-tolerant flowers have a vibrant, delicate look and grow densely together - Photo Courtesy of Proven Winners, Inc.A ceramic pot brimming with lush green foliage and abundant small, star-shaped blooms of heat-tolerant Beth's Blue® Star Flower (Isotoma) - Photo Courtesy of Proven Winners, Inc. Decorative pot not included.

Beth's Blue® Star Flower (Isotoma)

$10.99
$10.99

Close-up of a Big Leaf Creeping Wire Vine (Muehlenbeckia) with small, round green leaves set against a blurred blue pot and reddish ground - Photo Property of Garden Crossings LLCA hanging basket filled with Big Leaf Creeping Wire Vine (Muehlenbeckia) and vivid orange and yellow blooms is showcased in a lively garden with colorful flower beds, stone borders, lush ground cover, and a partly cloudy blue sky - Photo Property of Garden Crossings LLC. Hanging basket not included.

Big Leaf Creeping Wire Vine (Muehlenbeckia)

$10.99
$10.99

Bluebird Nemesia displays clusters of vibrant blue-purple flowers with white centers in the foreground, while a blurred mix of orange and white blooms adds colorful contrast in this garden scene - Photo Property of Garden Crossings LLC.Bluebird Nemesia features clusters of small blue-purple flowers with yellow and white centers, densely packed for a vibrant display - Photo Courtesy of Proven Winners, Inc.

Bluebird Nemesia

$10.99
$10.99
Close-up of creamy white and pale yellow African Dasies in bloom, set against leafy green with an unopened yellow bud - Photo Property of Garden Crossings LLCA Double Moonglow African Daisy with a yellow center blooms amid vibrant red flowers and lush green foliage in a garden - Photo Property of Garden Crossings LLC

Bright Lights™ Double Moonglow African Daisy (Osteospermum)

$10.99
$10.99

African Daisy with vibrant orange and pink blooms with purple centers, surrounded by lush green leaves - Photo Property of Garden Crossings LLCVibrant orange blooms with purple centers, set among lush green foliage and complemented by summer flowers in shades of purple and pink - Photo Property of Garden Crossings LLC

Bright Lights™ Horizon™ Sunset African Daisy (Osteospermum)

$10.99
$10.99

Close-up of Pink African Daisy flowers with vibrant pink petals, yellow and dark centers, lush green leaves, and unopened buds. The blooms display soft purple hues in a strikingly symmetrical pattern - Photo Property of Garden Crossings LLCPink African Daisy blooms in light purple and pink among green leaves, with some petals showing pink hues and a few flowers still partially closed - Photo Property of Garden Crossings LLC

Bright Lights™ Pink African Daisy (Osteospermum)

$10.99
$10.99

A close-up of Bright Lights™ Purple African Daisy (Osteospermum), a vibrant magenta, heat-tolerant bloom with a dark center and yellow dots, shown among green leaves and buds—ideal for summer color in the garden - Photo Courtesy of Proven Winners, Inc. Bright Lights African Daisies featuring vivid purple, daisy-like blooms with dark centers and green foliage - Photo Property of Garden Crossings LLC

Bright Lights™ Purple African Daisy (Osteospermum)

$10.99
$10.99
Bright Lights™ Red African Daisy (Osteospermum) displays vivid red blooms with dark centers and yellow accents, set against lush green foliage - Photo Property of Garden Crossings LLCTwo Red African Daisy blooms display dark red, striped petals with yellow centers, surrounded by green leaves and buds - Photo Property of Garden Crossings LLC

Bright Lights™ Red African Daisy (Osteospermum)

$10.99
$10.99

A close-up of Bright Lights™ White African Daisy (Osteospermum), a heat-tolerant flower featuring a light brown center, surrounded by green leaves with blurred green buds in the background - Photo Property of Garden Crossings LLCClose-up of White African Daisies in summer bloom, featuring yellow centers, long overlapping petals, and lush green leaves for a vibrant, dense floral display - Photo Courtesy of Proven Winners, Inc.

Bright Lights™ White African Daisy (Osteospermum)

$10.99
$10.99

Close-up of Bright Lights™ Yellow African Daisy blooms with green centers overlapping, filling the image and creating a vibrant, cheerful pattern - Photo Courtesy of Proven Winners, Inc.

Bright Lights™ Yellow African Daisy (Osteospermum)

$10.99
$10.99

Close-up of vibrant purple Bumble Bee™ Blue Calibrachoa, pollinator-friendly flowers with yellow centers among green leaves; some pink blooms are visible in the background - Photo Property of Garden Crossings LLCClose-up of a single vibrant Bumble Bee™ Blue Calibrachoa bloom with a yellow center, surrounded by green leaves and other flowers in the background - Photo Courtesy of Ball Horticulure, Inc.

Bumble Bee™ Blue Calibrachoa

$10.99
$10.99

Bumble Bee™ Hot Pink Calibrachoa features bright magenta-pink blooms with yellow star centers and green leaves. These closely clustered Millionbells create a vibrant, colorful display as trailing annuals - Photo Property of Garden Crossings LLCA round, dark planter featuring vibrant Bumble Bee™ Hot Pink Calibrachoa sits on a circular stone patio surrounded by lush green foliage and large stone decorations in the background. - Photo Courtesy of Ball Horticulure, Inc.

Bumble Bee™ Hot Pink Calibrachoa

$10.99
$10.99

Bumble Bee™ Orange Calibrachoa features vibrant orange flowers with red centers and yellow throats, surrounded by lush green leaves. Delicate veins accent these stunning millionbells, all showcased in glorious full bloom - Photo Property of Garden Crossings LLCA gray flower pot displays a dense, rounded cluster of Bumble Bee™ Orange Calibrachoa, featuring orange and red blooms edged in yellow, all set against a plain white background - Photo Courtesy of Ball Horticulure, Inc. Decorative pot not included.

Bumble Bee™ Orange Calibrachoa

$10.99
$10.99