Cosmos Seed ( Annual )
Plant seeds in moist, well-drained soil about 1/4-inch deep and 12-18 inches apart after the danger of frost has passed. You can also plant transplants instead of seeds. They also like soil that is not too rich.
They can tolerate warm, dry weather.
Depending on the type of flower, cosmos can grow anywhere between 18-60 inches tall. If you are growing cosmos from seeds, be mindful that it takes about 7 weeks to first bloom. After that, though, your flowers should continue to bloom until the next frost.
In order to prolong flowering, you should deadhead the plants (remove the dead/faded flowers).
Apollo Lovesong Pink/White Cosmos is a charming dwarf cosmos variety that produces an abundance of large, silky blooms in soft shades of pink and pure white. Part of the popular Apollo Series, this compact selection offers all the beauty of traditional cosmos in a shorter, sturdier plant that is ideal for containers, borders, and smaller garden spaces. The cheerful daisy-like flowers float above delicate ferny foliage from early summer until frost, creating a romantic cottage-garden appearance while attracting a steady stream of butterflies and pollinators.
Garden Uses:
Apollo Lovesong Pink/White is perfect for containers, patio planters, cottage gardens, flower borders, cutting gardens, pollinator gardens, and mass plantings. The compact habit makes it especially useful where traditional tall cosmos would be too large. The soft pink and white flowers blend beautifully with zinnias, marigolds, salvias, dianthus, asters, and ornamental grasses. The blooms are excellent for fresh bouquets and add a delicate, airy quality to floral arrangements.
Growing Information:
Sow seeds directly outdoors after danger of frost has passed or start indoors 4-6 weeks before transplanting. Seeds germinate readily in 7-14 days at temperatures of 70-75°F. Plants thrive in full sun and well-drained soil. Cosmos actually performs best in moderately fertile soil, as overly rich conditions may produce excess foliage at the expense of flowers. Apollo Lovesong typically grows 18-24 inches tall, remaining much more compact than traditional cosmos varieties. Deadheading encourages continuous flowering throughout the season.
Sensation Mix Cosmos is one of the most beloved and widely grown cosmos varieties, producing masses of large, silky blooms in shades of white, soft pink, rose, deep pink, and crimson. First introduced in the early twentieth century, the Sensation Series revolutionized cosmos breeding by producing larger flowers and more vigorous plants than earlier selections. The graceful blooms sway above delicate, fern-like foliage from midsummer until frost, creating a colorful display that attracts butterflies, bees, and admirers throughout the growing season.
Garden Uses:
Sensation Mix is ideal for cottage gardens, cutting gardens, pollinator plantings, wildflower gardens, annual borders, and large landscape displays. Its tall, airy habit makes it perfect for the middle or back of flower beds where it provides months of color and movement. The flowers blend beautifully with zinnias, sunflowers, cleome, rudbeckia, salvias, and ornamental grasses. The long stems make exceptional cut flowers for fresh bouquets and floral arrangements.
Growing Information:
Direct sow seeds outdoors after danger of frost has passed, or start indoors 3-4 weeks before planting time. Seeds germinate readily in 7-14 days at temperatures of 70-75°F. Plants thrive in full sun and well-drained soil. Cosmos performs best in average to moderately poor soils, as overly rich conditions often result in excessive foliage growth and fewer flowers. Plants typically grow 36-60 inches tall and spread 18-24 inches wide. Deadheading spent blooms encourages continued flowering until frost.
White Purity Cosmos is one of the most elegant and refined annual flowers available, producing masses of large, pure white blooms that seem to float above delicate, fern-like foliage. The pristine flowers create a graceful, airy appearance that brightens garden beds, borders, and cutting gardens throughout the summer and fall months. Easy to grow and remarkably floriferous, White Purity combines old-fashioned charm with outstanding modern garden performance, making it a favorite among cottage gardeners, pollinator enthusiasts, and flower arrangers alike.
Garden Uses:
White Purity is ideal for cottage gardens, moon gardens, pollinator plantings, cutting gardens, wildflower displays, and mixed borders. The pure white flowers blend effortlessly with nearly every color in the garden and provide a cooling contrast to bright summer blooms. Plants pair beautifully with zinnias, salvias, cleome, rudbeckia, sunflowers, asters, and ornamental grasses. The long stems and excellent vase life make White Purity one of the finest cosmos varieties for fresh floral arrangements.
Growing Information:
Direct sow seeds outdoors after danger of frost has passed, or start indoors 3-4 weeks before transplanting. Germination typically occurs within 7-14 days at temperatures of 70-75°F. Plants thrive in full sun and well-drained soil. Cosmos generally performs best in average or moderately poor soil, as overly rich soil often results in excessive foliage and fewer flowers. White Purity typically grows 36-60 inches tall and spreads 18-24 inches wide. Deadheading encourages continuous flowering until frost.
Sensation Dazzler Cosmos is a brilliant selection of Cosmos bipinnatus known for its glowing deep crimson-red blooms and bright golden centers. The flowers are large, open, and daisy-like, carried on tall, graceful stems above finely cut, fern-like foliage. As part of the classic Sensation group, Dazzler brings bold color, excellent garden height, and a long season of bloom from summer until frost. Its vivid color makes it a standout in borders, cottage gardens, cutting gardens, and pollinator plantings.
Garden Uses:
Sensation Dazzler is ideal for cottage gardens, cutting gardens, pollinator plantings, wildflower gardens, annual borders, and mixed flower beds. The rich crimson flowers create strong contrast when planted with white cosmos, pink cosmos, zinnias, sunflowers, cleome, salvias, marigolds, and ornamental grasses. Its tall, airy habit makes it especially useful for the middle or back of borders, where the flowers can sway naturally above lower-growing plants. The long stems also make excellent cut flowers for fresh bouquets.
Growing Information:
Direct sow seeds outdoors after danger of frost has passed, or start indoors 3-4 weeks before transplanting. Seeds germinate readily in 7-14 days at temperatures of 70-75°F. Plants prefer full sun and well-drained soil. Cosmos often flowers best in average to moderately poor soil, as overly rich soil may produce lush foliage with fewer blooms. Sensation Dazzler typically grows 36-60 inches tall and spreads 18-24 inches wide. Deadheading spent flowers encourages continued blooming, though plants are naturally free-flowering once established.
Cosmic Mix Cosmos is a vibrant blend of compact cosmos varieties that produces an abundance of cheerful blooms in shades of white, pink, rose, magenta, and crimson. Bred for shorter, sturdier growth than traditional cosmos, the Cosmic Series delivers exceptional flower power while remaining perfectly suited for containers, borders, and smaller garden spaces. The large, daisy-like blooms rise above finely textured, fern-like foliage, creating a colorful display that begins in early summer and continues until frost.
Garden Uses:
Cosmic Mix is ideal for containers, patio planters, flower borders, cottage gardens, pollinator gardens, and mass plantings. Its compact size allows gardeners to enjoy the beauty of cosmos without the height associated with traditional varieties. The colorful flowers pair beautifully with marigolds, zinnias, salvias, dianthus, ageratum, celosia, and ornamental grasses. The blooms also make attractive cut flowers for small bouquets and table arrangements.
Growing Information:
Direct sow seeds outdoors after danger of frost has passed, or start indoors 3-4 weeks before transplanting. Germination typically occurs within 7-14 days at temperatures of 70-75°F. Plants prefer full sun and well-drained soil. Cosmos generally performs best in average garden soil, as excessive fertility may encourage foliage growth rather than flowers. Cosmic Mix plants typically reach 18-24 inches tall and spread 12-18 inches wide. Deadheading spent blooms promotes continuous flowering throughout the season.
Cosmic Orange Cosmos is a dazzling compact cosmos variety that produces masses of brilliant orange blooms throughout the summer and fall. Unlike the traditional pink and white forms of Cosmos bipinnatus, Cosmic Orange offers warm sunset shades that bring exceptional brightness and energy to the garden. The vibrant flowers stand above finely divided, fern-like foliage on sturdy, compact plants that are perfectly suited for borders, containers, and smaller garden spaces. With its nonstop flowering habit and excellent heat tolerance, Cosmic Orange delivers months of cheerful color with minimal care.
Garden Uses:
Cosmic Orange is ideal for containers, patio planters, flower borders, pollinator gardens, cottage gardens, and mass plantings. The vivid orange flowers combine beautifully with yellow marigolds, blue salvias, purple ageratum, red zinnias, celosia, and ornamental grasses. Its compact growth habit makes it particularly useful in smaller landscapes where traditional tall cosmos varieties may be too large. The flowers also make attractive additions to fresh-cut bouquets.
Growing Information:
Direct sow seeds outdoors after danger of frost has passed, or start indoors 3-4 weeks before transplanting. Germination generally occurs within 7-14 days at temperatures of 70-75°F. Plants thrive in full sun and well-drained soil. Cosmos performs best in average garden soil, as overly fertile conditions may reduce flowering. Cosmic Orange typically reaches 18-24 inches tall and spreads 12-18 inches wide. Regular deadheading encourages continuous blooming from early summer until frost.
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