Cosmos Seeds (Cosmos bipinnatus, sulphureus) - Diane's Flower Seeds
Cosmos Seeds

Cosmos is an annual flower that blooms in late summer. The single or double flowers bloom in a wide range of colors. Easy to grow from seed.

Sowing Cosmos Seeds

Sow cosmos seeds outdoors after the last frost date, 1/8" deep. Or start indoors 4-5 weeks early. Full sun. Spacing 12".

Cosmos 'Daydream'
Cosmos 'Daydream'
(Cosmos bipinnatus)

225 seeds   $2.75




photo by Rebecca Shields                
Cosmos 'Daydream' has lovely, pale pink flowers with a deep rose ring around the golden-yellow center. It's an early bloomer with 1.5" flowers that are produced in abundance.

Daydream cosmos has a compact, bushy habit, which makes it a good choice for containers or the middle of the border. It's a wonderful cut flower.

height 3'


Cosmos 'Rubenza'
(Cosmos bipinnatus)

140 seeds   $3.00




Image courtesy Thompson & Morgan
Cosmos 'Rubenza' is a unique variety with large, single flowers that start out deep ruby red and mature to shades of antique rose and mauve. It's a mid-height cosmos that fits nicely into any garden. Great for containers.

Rubenza cosmos won the Fleuroselect Novelty Award. This is one cosmos that you don't want to miss!

height 30"


Cosmos 'Dwarf Sensation'
Cosmos 'Dwarf Sensation Mix'
(Cosmos bipinnatus)

265 seeds   $2.75                     
Cosmos 'Dwarf Sensation Mix' blooms in shades of pink, white and crimson. It fits into small gardens, and it's perfect for containers. It goes well with a variety of annuals and perennials.

Cosmos 'Dwarf Sensation Mix' is one of our most popular selections, probably because of its compact size and early blooming.

height 20"


Cosmos 'Gloria'
Cosmos 'Gloria'
(Cosmos bipinnatus)

275 seeds   $2.75




photo by Myriam Vandenberghe          
Cosmos 'Gloria' has large, rose-pink flowers with a crimson eye surrounding the yellow center. It's simply lovely in the late summer garden.

Gloria cosmos is a tall variety for the back of the border or the center of an island bed. It goes well with other late summer annuals like nicotiana and cleome. It tolerates heat, drought and poor soil.

height 3-4'


Cosmos 'Picotee'
Cosmos 'Picotee'
(Cosmos bipinnatus)

225 seeds   $2.75                
Cosmos 'Picotee' is a gorgeous variety. The 3" flowers have white petals outlined in pink or crimson. The tall, strong stems are great for cutting.

Picotee cosmos are tall plants with attractive, ferny foliage. They combine well with other flowers in the late summer garden. This variety is sure to become your new favorite!

height 3-4'


Cosmos 'Psyche White'
Cosmos 'Psyche White'
(Cosmos bipinnatus)

235 seeds   $2.75                
Cosmos 'Psyche White' has large, semi-double flowers of purest white. The flowers bloom on tall, strong stems that are good for cutting.

Tall cosmos should be placed where they won't shade smaller annuals and perennials. Try planting any of these bushy annuals in front of them to provide interest at a lower height: four o'clock, lavatera, rudbeckia, zinnia.

height 3-4'


Cosmos 'Purity '
Cosmos 'Purity'
(Cosmos bipinnatus)

235 seeds   $2.75                       
Cosmos 'Purity' is a classic variety. There's something innocent and refreshing about the large, pure white flowers with ferny foliage.

Purity cosmos are impressive at the back of the border or the center of an island bed. They are especially popular for white gardens. The flowers show up well during an evening stroll through the garden. Drought tolerant.

height 3-4'


Cosmos 'Seashells'
Cosmos 'Seashells Mix'
(Cosmos bipinnatus)

220 seeds   $2.75                
Cosmos 'Seashells Mix' is a unique variety with 3" two-tone flowers in shades of pink, white, rose and carmine. The flower petals are fluted, which gives them the impression of seashells. They make interesting cut flowers.

Tall cosmos have a tendency to blow over in strong winds. Space the plants 12" apart to support each other. Deer resistant. Also known as Cosmos 'Sea Shells'.

height 3-4'


Cosmos 'Sensation Mix'
(Cosmos bipinnatus)

300 seeds   $2.75




photo by Gabrielle Rhodes       
Cosmos 'Sensation Mix'
Cosmos 'Sensation Mix' is hard to beat for color in the late summer garden. The large flowers bloom in shades of pink, white and crimson-red.

Cosmos 'Sensation Mix' was an All-America Selections winner in 1936. It grows well in a wide range of conditions, including drought and poor soil. The blooms attract butterflies and beneficial insects.

height 3-4'


Cosmos 'Sonata White'
Cosmos 'Sonata White'
(Cosmos bipinnatus)

50 seeds   $3.00                
Cosmos 'Sonata White' is an early-blooming variety that makes a wonderful filler in the late summer garden. It goes with everything, but it looks truly stunning with blue flowers like Chinese forget-me-not.

Sonata White is my favorite white cosmos. It's a dwarf variety, so it doesn't shade out other plants. Try it near the front of the border or in containers.

height 20"


Cosmos 'Tetra Versailles Red'
Cosmos 'Tetra Versailles Red'
(Cosmos bipinnatus)

175 seeds   $2.75        
Cosmos 'Tetra Versailles Red' is a stunning selection with flowers that open in a deep shade of wine red and then slowly fade to a vibrant cerise pink. The golden-yellow centers create a lovely contrast.

Tet Versailles Red creates an eye-catching focal point in the garden. It's the darkest red cosmos that we have grown.

height 3-4'


Cosmos 'Dazzler'
Cosmos 'Dazzler'
(Cosmos bipinnatus)

250 seeds   $2.75
Cosmos 'Dazzler' has vivid, carmine-red flowers with bright yellow centers. The finely cut foliage makes a lovely backdrop for the flowers.

Cosmos 'Dazzler' is a tall variety that stands out in the garden. Pinch out the tips for bushier plants. The vivid color looks great with other jewel-tone flowers of orange, blue, purple and yellow.

height 3-4'


Cosmos bipinnatus Yellow
Cosmos, Yellow
(Cosmos bipinnatus)

160 seeds   $2.75        
Cosmos bipinnatus Yellow has light yellow petals that fade to creamy white. It's a late bloomer that performs best in warm climates with long summers. It makes a lovely cut flower, and it goes well with pastel color schemes.

height 3-4'


Cosmos 'Radiance'
(Cosmos bipinnatus)

200 seeds   $2.75                       
Cosmos 'Radiance' has deep rose-pink blooms with a crimson eye surrounding the bright yellow center.

Cosmos 'Radiance' was an All America Selections winner in 1948. This tall variety is a standout in the garden. Combine it with other tall or bushy annuals like cleome, nicotiana and four o'clock. It's especially nice with white flowers.

height 3-4'


Cosmos 'Ladybird Mix'
Cosmos 'Ladybird Mix'
(Cosmos sulphureus)

80 seeds   $2.75         
Cosmos 'Ladybird Gold' has bright gold flowers that look especially nice in warm color schemes. The compact plants are great for containers and small gardens. Deer resistant.

height 20"


Cosmos 'Ladybird Gold'
(Cosmos sulphureus)

80 seeds   $2.75            
Cosmos 'Rubenza'
Cosmos 'Radiance'
Cosmos 'Ladybird Gold'
Cosmos 'Ladybird Orange'
Cosmos 'Ladybird Orange'
(Cosmos sulphureus)

80 seeds   $2.75        
Cosmos 'Ladybird Orange' has flowers the color of orange juice. It attracts hummingbirds, butterflies and beneficial insects, making it a good companion plant in the vegetable garden. Also known as Dwarf Orange Cosmos.

height 20"


Cosmos 'Ladybird Lemon'
Cosmos 'Ladybird Lemon'
(Cosmos sulphureus)

80 seeds   $2.75        
Cosmos 'Ladybird Lemon' has bright yellow flowers. The compact plants fit into any little spot in the garden. It looks especially nice paired with blue flowers like Chinese forget-me-not.

height 20"


Cosmos sulphureus 'Dwarf Red'
Cosmos 'Dwarf Red'
(Cosmos sulphureus)

80 seeds   $2.75

out of stock        
Cosmos 'Dwarf Red' has vibrant, orange-red flowers. It's the best cosmos for attracting hummingbirds. I planted it near my hummingbird feeder, and I was surprised to see hummingbirds visiting the cosmos more than the feeder.

height 20"

Annual Flower Seeds

Top of Page






Cosmos 'Ladybird Mix' is a lovely mixture of lemon yellow, warm gold and vivid orange flowers. This mixture doesn't contain Cosmos 'Dwarf Red', so you would need to buy it separately if you want to add it to the mix.

height 20"