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
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
Campfire® Flame Bidens showcases bright orange and red daisy-like flowers with yellow centers among lush green leaves - Photo Property of Garden Crossings LLCA dense cluster of Campfire® Flame Bidens displays vibrant orange-red flowers with yellow centers and green leaves. These heat-tolerant annuals feature petals with subtle color gradients, creating a rich, lively look - Photo Courtesy of Proven Winners, Inc.

Campfire® Flame Bidens

$10.99
$10.99

A vibrant cluster of Campfire® Red Ember Bidens features orange-red flowers with yellow centers, prominent petals, and vivid stamens - Photo Courtesy of Proven Winners, Inc.A vibrant cluster of Campfire® Red Ember Bidens, with bright red blooms and yellow centers, thrives in a dark, glossy ceramic pot set against a white background - Photo Courtesy of Proven Winners, Inc. Decorative pot not included.

Campfire® Red Ember Bidens

$10.99
$10.99

A cluster of bright pink impatiens is surrounded by the vibrant green leaves with deep maroon centers and jagged yellow-green edges of Colorblaze® Strawberry Drop Coleus - Photo Property of Garden Crossings LLCA vibrant Colorblaze® Strawberry Drop Coleus with green, burgundy, and pink foliage grows densely in a round modern gray and taupe ceramic pot against a white background - Photo Courtesy of Proven Winners, Inc. Decorative pot not included.

ColorBlaze® Strawberry Drop Coleus

$10.99
$10.99
Three pale, star-shaped flowers with light purple veins bloom among green leaves. Endless™ Flirtation Bush Violet offers delicate, five-pointed petals - Photo Property of Garden Crossings LLCA close-up of a white browallia with faint purple veins, green leaves, and blurred red flowers in the background - Photo Property of Garden Crossings LLC

Endless™ Flirtation Bush Violet (Browallia)

$10.99
$10.99

Close-up of vibrant Endless™ Illumination Bush Violet flowers with green leaves, accompanied by a few narrow red-orange blooms - Photo Property of Garden Crossings LLCA cluster of vibrant purple star-shaped flowers, Endless™ Illumination Bush Violet (Browallia) is a stunning blue-toned annual - Photo Courtesy of Proven Winners, Inc.

Endless™ Illumination Bush Violet (Browallia)

$10.99
$10.99

A close-up of vibrant green and yellow-veined leaves, some edged with purple, from Fancifillers™ Guacamole Plectranthus near dark purple foliage and pale pink flowers - Photo Property of Garden Crossings LLC.Close-up of vibrant yellow-green, serrated leaves and deep green veins with purplish stems in the background, showcasing the lush foliage of Fancifillers™ Guacamole Plectranthus - Photo Courtesy of Mast Young Plants.

Fancifillers™ Guacamole Plectranthus

$10.99
$10.99
Heart to Heart® 'Burning Heart' Caladium features large, heart-shaped leaves in reddish-brown with yellow speckles. This tropical houseplant stands out, while hints of green foliage and a black pot can be seen in the background - Photo Property of Garden Crossings LLCHeart to Heart® 'Burning Heart' Caladium features large, heart-shaped red leaves with pink and white speckles that overlap to form dense, vibrant foliage - Photo Courtesy of Proven Winners, Inc.

Heart to Heart® 'Burning Heart' Caladium

$24.99
$24.99

A close-up of a Heart to Heart® 'Xplosion' Caladium displays heart-shaped, vibrant green and red leaves with white speckles in a black pot, surrounded by lush greenery - Photo Property of Garden Crossings LLC. Decorative pot not included.The Heart to Heart® 'Xplosion' Caladium features large, heart-shaped leaves with green edges, deep red veins, and white splashes, presented in a textured light ceramic pot against a white background - Photo Courtesy of Proven Winners, Inc. Decorative pot not included.

Heart to Heart® 'Xplosion' Caladium

$24.99
$24.99
Close-up of an Icicles Licorice Plant (Helichrysum) with silvery, spiky foliage grows in a garden bed, surrounded by lush green plants and purple leaves edged in yellow-green - Photo Property of Garden Crossings LLC.A potted Icicles Licorice Plant (Helichrysum) displays dense, narrow silvery foliage with soft, feathery texture and a few small pink flowers along the edges, accented by surrounding green leaves - Photo Courtesy of Proven Winners, Inc. Decorative pot not included.

Icicles Licorice Plant (Helichrysum)

$10.99
$10.99

A close-up of Plum Dandy™ Alternanthera reveals lush, oval leaves in green and deep purple with a few bright pinkish-red ones. The densely clustered foliage is perfect for container gardening - Photo Property of Garden Crossings LLC. Decorative pot not included.A large blue ceramic pot features lush foliage of Plum Dandy™ Alternanthera, highlighted by soft purple and white flowers—an eye-catching container garden displayed on a stone patio surrounded by greenery and rocks - Photo Property of Garden Crossings LLC. Decorative pot not included.

Plum Dandy™ Alternanthera

$10.99
$10.99

A cluster of vibrant pink impatiens in full bloom, nestled among lush green leaves - Photo Courtesy of Proven Winners, Inc.A rectangular metal planter filled with lush foliage and vibrant red Rockapulco® Red Double Impatiens - Photo Courtesy of Proven Winners, Inc. Decorative pot not included.

Rockapulco® Red Double 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

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

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
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
Vivid scarlet blooms of the Solera™ Red Zonal Geranium (Pelargonium) burst among lush, scalloped leaves, with unopened buds nearby. A blurred background suggests a flourishing container garden filled with greenery - Photo Property of Garden Crossings LLC.Vibrant scarlet blooms of the Solera™ Red Zonal Geranium (Pelargonium) burst from a white textured pot, accented by lush green leaves and companion container garden displays in the background - Photo Property of Garden Crossings LLC. Decorative pot not included.

Solera™ Red Zonal Geranium (Pelargonium)

$11.99
$11.99
Large green leaves with dark edges and pinkish-red centers from the Space Age™ Black Hole™ Rex Begonia are shown in front, while small clusters of purple flowers appear in the background for a striking shade garden display - Photo Property of Garden Crossings LLCClose-up of Space Age™ Black Hole™ Rex Begonia leaves with jagged edges, displaying silvery-green tones, deep pink, and dark purple veins—an eye-catching shade garden plant - Photo Courtesy of Proven Winners, Inc.

Space Age® Black Hole™ Rex Begonia

$15.99
$15.99

A close-up of Space Age™ Europa™ Rex Begonia leaves with silvery-green centers, dark purple edges, and pinkish veins reveals unique spiral patterns and rich texture - Photo Property of Garden Crossings LLCClose-up of Space Age™ Europa™ Rex Begonia leaves. The green, pink, and purple foliage with textured surfaces and bold veins forms an eye-catching, colorful pattern - Photo Courtesy of Proven Winners, Inc.

Space Age® Europa™ Rex Begonia

$15.99
$15.99