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Cosmos, Bright Lights Mixed Colors

Short Description

Semidouble 2-3" blooms in a vibrant color mix.

Full Description

Lacy foliage and silky flowers give an airy touch to the garden from midsummer to frost. Wonderful for cutting. Tolerates poor soil, heat and humidity. Easy to grow. Grows best in full sun. Attracts Butterflies. Proven tops for performance and adaptability. Space 12-15" apart. Start outdoors after danger of frost.
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Item#: 36327A
Order: 1 Pkt. (300 seeds)
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Item#: 36327H
Order: 1 Pkt. (600 seeds)
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Product properties

Sun The amount of sunlight this product needs daily in order to perform well in the garden. Full sun means 6 hours of direct sun per day; partial sun means 2-4 hours of direct sun per day; shade means little or no direct sun.

Full Sun

Height The typical height of this product at maturity.

36 inches

Spread The width of the plant at maturity.

14-16 inches

Ornamental Use Ways in which the product may be used in the garden for ornamental effect.

Borders, Cut Flowers

Life Cycle This refers to whether a plant is an annual, biennial or perennial. Annuals complete their life cycles in one year; biennials produce foliage the first year and bloom and go to seed the second year; perennials can live for more than two years.


Sow Method This refers to whether the seed should be sown early indoors and the seedlings transplanted outside later, or if the seed should be sown directly in the garden at the recommended planting time.

Direct Sow

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Annuals Tour #1
Take a garden tour and see favorite annual plants in a garden setting. In this video- Zinnia, Angelonia, Marigold, Petunia, Celosia and Vinca.
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Cosmos seed should be sown directly in the garden after frost.

  • Direct sow seeds in average soil in full sun after danger of heavy frost.
  • Select a location in full to part shade with good rich well-drained organic soil protected from wind.
  • Prepare the bed by turning the soil under to a depth of 8 inches. Level with a rake to remove clumps of grass and stones.
  • Most plants respond well to soils amended with organic matter. Compost is a wonderful form of organic matter with a good balance of nutrients and an ideal pH level, it can be added to your planting area at any time. If compost is not available, top dress the soil after planting with 1-2 inches of organic mulch, which will begin to breakdown into compost. After the growing season, a soil test will indicate what soil amendments are needed for the following season.
  • Sow seeds 4 inches apart and ¼ inch deep
  • Firm soil lightly, water and keep evenly moist.
  • Seedlings will emerge in 7-10 days.
  • Thin plants to stand 8-10 inches when seedlings are 1 inch high.
  • Keep weeds under control during the growing season. Weeds compete with plants for water, space and nutrients, so control them by either cultivating often or use a mulch to prevent their seeds from germinating. 
  • Mulches also help retain soil moisture and maintain even soil temperatures. For annuals an organic mulch of shredded leaves lends a natural look to the bed and will improve the soil as it breaks down in time. Always keep mulches off a plant’s stems to prevent possible rot.
  • Keep soil evenly moist but not wet.
  • After plants are about 6 inches tall, a light fertilizer may be applied. Keep granular fertilizers away from the plant crown and foliage to avoid burn injury. Use low rates of a slow release fertilizer, as higher rates may encourage root rots.
  • Tall cultivars may need staking to prevent their thick, hollow stems from breaking due to heavy rain or wind.
  • Pinch off spent flowers to encourage continuous bloom. Pinching stem tips can reduce height and encourage branching but isn’t necessary. Deadheading is recommended since it lengthens the bloom season. Cosmos plants that aren’t deadheaded will self-sow in warm regions.
  • Monitor for pests and diseases. Check with your local Cooperative Extension Service for pest controls recommended for your area.
  • Remove plants after they are killed by heavy frost in fall to avoid disease issues the following year.
  • Cosmos plants can withstand heat and drought conditions.
  • Tall cosmos add a soft, airy touch to the back of an annual or mixed border. You can also use them as a fast-growing annual hedge or in a cutting garden. Since the taller cultivars are not always uniform in height, they’re perfect for adding an informal look to cottage gardens. Shorter cultivars of both species are ideal near the front of the border, in containers, or as edgings.
  • Cosmos makes beautiful cut flowers.
  • Because cosmos is easy to grow and the seeds are large and easy to handle, it is a good choice for a children’s garden.
Full Sun
36 inches
14-16 inches
Ornamental Use
Borders, Cut Flowers
Life Cycle
Sow Method
Direct Sow
Bloom Duration
10 weeks
Flower color
Gold, Orange, Red, Yellow
Cosmos, Bright Lights Mixed Colors is rated 4.4 out of 5 by 17.
Rated 5 out of 5 by from Lovely combination of colors We planted these one year and they have reseeded on their own for three years now :-) (The reseeding is easy to control. They're definitely not a "weed.") Very nice mix of excellent, bright colors. They also have a good height that's useful for planting in clusters at the back of our garden along the fence. They bloom wildly and will do it longer and better with dead-heading and some pruning. They definitely slow down by later summer, around early August in our hills, but continue blossoming enough until September. Despite the late summer slow down, still totally worth it. Their colors and their delicate flowers are wonderful.
Date published: 2017-03-18
Rated 5 out of 5 by from Grew where others failed These Cosmos have grown beautifully in a plot with clay-heavy soil with only part sun, where several other types of flowering annuals failed. Although they are just two shades of orange, they look terrific.
Date published: 2016-08-20
Rated 5 out of 5 by from Stunning - Not Deer Resistant! When the deer are hungry, they will eat these. If you don't have hungry deer, then you're in luck. That point aside, these produced a spectacular array of yellows and oranges in the garden last year. Very high germination rate and quick, too. They flowered for months, even in the peak of the summer when everything looked ready to dry up and die. Bees and small butterflies adore the flowers. They've self-seeded and the garden is loaded with little cosmos sprouts where the original plants were last year. Looking forward to another year of gorgeous yellow and orange flowers.
Date published: 2016-03-30
Rated 5 out of 5 by from Only Orange - and VERY TALL These are beautiful flowers but everyone is right about how tall they get. I have saved the seeds year after year and some of mine have grown to over 12 feet tall and I have pictures to prove it. However, they are all orange - but still beautiful
Date published: 2016-02-24
Rated 5 out of 5 by from So Pretty! I love how easy these were to plant and grow, they did get huge, but with so many flowers it certainly made a statement. I ended up taking all of the seeds and giving them to my many neighbors who asked for some. You can now see them all over the neighborhood!
Date published: 2014-03-18
Rated 4 out of 5 by from Great Cosmo! I bought seeds for this Cosmo, and they turned out great! They were mostly light orange and shades of yellow, and grew to about 2.4 feet tall. Planted it in full sun and average soil, and the bumble bees love them! Don't listen to the other reviews there not true if you live in the Midwest!
Date published: 2014-02-15
Rated 5 out of 5 by from The very best These are a wonderful flower for the lazy gardener. One reviewer writes that they become invasive and get over 6 feet tall if treated like a normal annual. So do not treat these like a normal annual. Grow them like wildflowers. They reseed for five years if you let them, but this year's reseed from a seed pack from 2009 was too inbred to flower, so I bought another pack. I got two shades of orange, no reds or yellows. Only orange! And two shades of orange! They are beautiful and my mother loves them. They reseed. They need little care!
Date published: 2013-07-15
Rated 3 out of 5 by from nothing but orange Time for Burpee to post a photo of what these really look like. Seriously, do you see any color but orange/yellow? Thse are sold as "mixed colors"
Date published: 2013-07-01
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